Arachnology
Entomology
Invertebrate Zoology
Vertebrate Zoology
Word Roots
Strange Tales
Rokes and Jiddles
A Dictionary for Invertebrate Zoology
Head Words - M
Ma, Macallum’s Hypothesis, Macaner, Macaronesia, Maccabeidae (Chaetostephanidae), Macerate, Machaeridae, Machilidae, Machiloidea, Machopolyp, Macraner (Macaner), Macrergate, Macrobenthos, Macrobiota, Macrobiotic, Macroblast, Macrocephalic Female, Macrocephalidae, Macrocercous Cercaria, Macrochaeta, Macrocilia, Macroclimate, Macrocnemes, Macrocnemic, Macroconjugant, Macroconsumer, Macrocyte, Macrodasyida (Macrodasyoida), Macrodiplactidae, Macroesthetes, Macroevolution, Macrofauna, Macrogamete (Megagamete), Macrogenesis, Macroglia, Macroglossate, Macrogyne, Macroic, Macrolecithal, Macrolepidoptera, Macroleucocyte, Macromere, Macromesentery, Macromitosome, Macromutation, Macronotal, Macront, Macronucleocyte, Macronutrients, Macrophage, Macrophagous, Macropharyngea, Macrophthalmic, Macroplankton, Macroplastron, Macropore, Macropseudogyne, Macropterous, Macropyrenic, Macroschizont, Macrosclere, Macroseptum, Macrosiphon, Macrosomatous, Macrosome (Megasome), Macrospecies, Macrospheric, Macrosplanchnic, Macrostomatous, Macrostomida, Macrosymbiote (Macrosymbiont), Macrotaxonomy, Macrotermitinae, Macrothermophilus, Macrotrichia, Macrotype, Macrozooid, Macrozoospore, Macrura, Macrurous (Macuric), Macula, Macula Adherans, Macula Germinitiva, Macula Statica, Maculate (Maculiferous, Maculose), Maculation, Madagascan (Malagasy) Faunal Subregion, Madescent, Madreporaria (Scleractinia, True Corals), Madrepore, Madreporic Canal, Madreporic Plate, Madreporite, Magelonidae, Maggot, Magnetic Sense, Main Bud, Maintenance Behavior, Maintenance Evolution (Norma-Lizing Selection, Stabilizing Selection), Majidae, Major Gene, Major Worker, Mala, Malachiidae, Malacoid, Malacology, Malacophilous, Malacopsylloidea, Malacopterous, Malacostega, Malacostraca, Malacostracous, Malacotylea, Malagasy Faunal Subregion, Malapophysis, Malar, Malar Cavity, Malarial Mosquito, Malaxation, Malayan Faunal Subregion, Malcidae, Maldanidae, Male, Malecell Receptacle, Male Ducts, Male Gonoducts, Male Funnel, Male Gamete, Male Gonad, Male Parthenogenesis, Male Pronucleus, Male Tube, Malel(l)A, Malleate, Malleations, Malleolus, Malleus, Mallophaga (Bird Lice, Biting Lice, Chewing Lice), Malpighi, Marcello, Malpighian Tubules (Medullary Pyramids), Maltha, Malthusian Parameter, Mamelon, Mamilla, Mam(m)illate (Mammiform, Mammose), Mamillation, Mammose, Manca Stage, Manchette, Manchurian Subregion, Mancoid Stage, Mandible, Mandibular, Mandibular Fossa, Mandibular Glands, Mandibular Palps, Mandibular Plates, Mandibular Pouch, Mandibular Ring, Mandibular Scar, Mandibular Sclerite, Mandibulata, Mandibulate, Mandibuliform, Mandibulohyoid, Mandibulomaxillary, Manducate, Manducation, Manducatum, Manhattan Distance, Manica, Manicate, Maniform, Manitruncus, Manna, Manometabola, Manometabolic (erron. Manometabolous), Manter’s Rules, Mantid Flies, Mantidae, Mantis Shrimps, Mantispidae, Mantle (Pallium), Mantle Canal, Mantle Cavity/Mantle Lobe, Mantle Cells, Mantle Fold, Mantle Groove, Mantle Lobe, Mantle Papilla, Mantle Skirt, Manubrial, Manubrium, Manus, Manuscript Name, Many-Plumed Moths, Map Butterflies, Map Unit, Marble Gall, March Flies, Marcid, Margaritaceous, Margarodidae, Margiform, Margin, Marginal Anchors, Marginal Bodies, Marginal Bristles, Marginal Carina, Marginal Cell, Marginalia, Marginal Nuclei, Marginal Tubes, Marginal Veins, Marginal Vesicles, Marginate, Maricola, Maricolous, Marita, Marital, Marker, Mark-Recapture Technique, Marmorate, Marocyte, Marsh, Marsupium, Martin Bug, Masaridae, Mask, Masked Pupa, Masking Gene, Mason Bee, Mason Wasp, Mass Communication, Mass Extinction, Mass Provisioning, Massive Hydrocorals, Mastax, Mastication (Malaxation), Masticatory Process, Masticatory Stomach, Masticomorphic, Mastidia (Mastidion), Mastidion, Mastigium, Mastigobranchiae, Mastigonemes, Mastigophore, Mastigopus Larva, Mastigosome, Mastoid, Mastotermitidae, Mate Guarding, Maternal Effects (Maternal Message), Maternal Inheritance, Maternal Sex Determination, Maternal Zooid, Mating Continuum, Mating Group, Mating Plug (Spermatophragma), Mating Spines, Mating System, Mating, Matricidal Hatching, Matriclinous (Matriclinal), Matrifilial, Matrifocal, Matrilinear, Matrix Glands, Matrix Layer, Matrix, Matrices, Matromorphic, Matrone, Maturation, Maturation Division, Maturation Feeding, Maturation Zone, Mature Region, Matuyama Chron, Maxaponta, Maxiliferous, Maxilla (Maxillae), Maxillary, Maxillary Carrier, Maxillary Gland, Maxillary Guides, Maxillary Palp, Maxillary Segment, Maxillary Stylets, Maxillary Tentacle, Maxilliform, Maxilliped(e) (Gnathopodite), Maxillolabial, Maxillula, Maxim, Maybug, Mayflies, Mayrian Furrow, Mealworm, Mealy, Mealybug, Mean Phenotypic Value, Meatal Cleft, Meatus, Mechanical Isolation, Mechanical Sense, Mechanical Tissue, Mechanocyte, Mechanoreceptor, Mechanotropism, Meconidium (Meconida), Mecoptera (Panorpatae), Media, Media Worker, Mediad (Mesad, Admedial), Medial, Medial Cross Vein, Medial Cubital Cross Vein, Median, Median Bulb, Median Caudal Nerve, Median Cercus, Median Cord, Median Dorsal Plate, Median Esophageal Bulb, Median Eye, Median Lamina, Median Latus, Median Ligament, Median Oviduct, Median Segment, Median Tubuli, Median Valve, Median Wall, Mediator, Medifurca, Mediocubital, Mediodorsal, Mediolateral Nerve Cord, Mediolecithal, Mediopectoral, Mediotergite, Medioventral, Mediproboscis, Medithorax, Medocostidae, Medulla, Medulla Externa, Medulla Interna, Medulliblasts, Medusa (Hedrioblast), Medusiform, Medusoid, Medusome, Meenoplidae, Megabenthos, Megacephalic, Megachilidae (Gastrilegid Bees), Megaclad (Megaclone), Megaclone, Megadrili, Megafauna, Megagaea, Megagamete, Megagametogenesis, Megalaesthetes, Megalodontidae, Megalodontoidea, Megalolecithal, Megalopa Stage, Megalopore, Megaloptera, Megalops, Megamere, Megameric, Meganephridium, Meganephrostomal, Meganisoptera, Megaplankton, Megapodagrionidae, Megasclere, Megascolecidae, Megascolecin, Megasome, Megaspheric Form, Megazooid, Megazoospore, Megetic, Mehlis’ Glands, Meinertellidae, Meiobenthos, Meiocyte, Meiofauna, Meiogenic, Meiogyrous, Meiolecithal, Meiomery, Meiophase, Meiosis (Reduction Division, Maiosis, Miosis), Meiotic Drive, Meiotic Parthenogenesis (Automictic Parthenogenesis), Meiotrichy, Melandryidae, Melanesia, Melania, Melanic Mutation, Melanin, Melanism, Melanoblast, Melanocyte, Melanogen, Melanogensis, Melanoid, Melanoids, Melanophore, Melanosoma (Melanosome), Meliphagous (Mel(l)ivorous), Melittidae, Melittology, Melittophily, Melivorous, Mellifera, Melliferous, Mellisugent, Mellitophilous, Mel(L)Ivorous, Meloidae, Melolonthinae, Melyridae, Membracidae, Membranaceous, Membranal, Membrane, Membrane Potential, Membraniferous, Membranoid, Membranous, Membranous Sac, Membranule, Mendle, Gregor Johann, Mendel’s Laws (Mendelism), Mendelian Character, Mendelian Inheritance, Mendelian Mutation, Mendelian Population, Mendelian Ratio, Mendelism, Meningosis, Meniscoidal, Menognathous, Menoponidae, Menorhyncha, Menorhynchous, Menotaxis, Mental, Mental Plate, Mental Setae, Mental Suture, Mentasuture, Mentigerous, Mentum, Meraspis, Merdicolous, Merdivorous (Scatophagous), Mereopodite (erron.), Mericlinal Chimaera, Meridional, Meridional Canal, Meridional Furrow, Merismatic, Merismatoid (Merismoid), Merispore, Meristal Annuli, Meristic, Meristic Variation, Meriston, Meritrichy, Mermithaner, Mermithergate, Mermithida (Trichosyringida), Mermithized, Mermithodinergate, Mermithogyne (Mermithophore), Mermithophore, Mermithostratiote, Mermitoid Esophagus, Meroandry, Meroblastic Cleavage, Merocenosis, Merocerite, Merocheta, Merocrine Gland, Meroepineuston, Merogamodeme, Merogastrula, Merogenesis, Merognathite, Merogony, Merohyponeuston, Meroic, Meroistic, Merological Approach, Meromorphosis, Meromyarian, Meron (Meseusternum), Meronephridium, Meroneuston, Meront, Meroparasite, Meropeidae (Meropidae), Meropelagic, Meroplankton, Meropleuron, Meropodite (Meros, Merus), Merops, Merosoma (Merosome), Merosomatous, Merosome, Merospermy, Merostasis, Merosthenic, Merostomata (Delobranchiata), Merotomy, Merotope, Merotype, Merozoa, Merozoites, Merozygote, Mertensian Mimicry, Merus, Mesad, Mesiad, Mesadenia, Mesadene, Mesal Penellipse, Mesal, Mesial, Mesian, Mesanapleural Suture, Mesanepimeron, Mesanepisternum, Mesaxon, Mesectoderm, Mesembryo, Mesenchyme, Mesenchyma, Mesendoderm (Mesentoderm), Mesenterial, Mesenteric Caeca, Mesenteron, Mesenteron Rudiments, Mesentery, Mesentoblast, Mesentoderm, Mesepimeral Scale or Seta, Mesepimeral Suture, Mesepimeron, Mesepisternum (Mesoepisternum), Meseusternum, Mesiad, Mesial, Mesian, Mesial Sclerite, Mesic, Mesinfraepisternum, Meskatepimeron, Meskatepisternum, Mesobasisternum, Mesobenthos, Mesobiota, Mesoblast, Mesoblastic Somites, Mesobranchial, Mesobranchial Lobe or Area, Mesocardiac Ossicle, Mesocephalic, Mesocephalic Pillars, Mesocercaria, Mesocerebrum (Deuterocerebrum), Mesocoel, Mesocole, Mesoconch, Mesocuticle, Mesoderm, Mesodermal Tube, Mesodont, Mesoepinotal Suture, Mesoepisternum, Mesofacial Plate, Mesofauna, Mesofurca (Medifurca), Mesogaster, Mesogastric, Mesogastric Lobe/Area, Mesogastropoda (Pectinibranchiata, Monotocardia, Taenioglossa), Mesogenous, Mesogloea, Mesognathion, Mesohaline, Mesohyal, Mesokatepimeron, Mesokatepisternum (Sternopleurite, Mesosternal Area), Mesolamella, Mesolecithal Egg, Mesomere, Mesomeron, Mesomitosis, Mesomorph, Mesomorphic, Meson, Mesonephridium, Mesonephrostomal, Mesonotum, Mesoparapteron, Mesopelagic, Mesopeltidium, Mesophragma, Mesoplankton, Mesoplast, Mesoplax, Mesopleural Bristles, Mesopleural Fovea, Mesopleural Ridge, Mesopleural Sulcus, Mesopleural Suture, Mesopleuron, Mesopleurosternal Ridge, Mesopleurosternal Suture, Mesopleurum, Mesopodium, Mesopore, Mesopostnotum, Mesopostscutellum, Mesopostscutellum, Mesopraescutum, Mesopsammic (Psammous), Mesopsammon, Mesopseudogyne, Mesopsocidae, Mesorhabdions, Mesosaprobic, Mesoscutellum, Mesoscutum, Mesoseries, Mesosoma, Mesosome, Mesospermalege, Mesostate, Mesostereom, Mesosternal Cavity, Mesosternebra, Mesosternellum, Mesosternum (Mesostethium, Corpus Sterni), Mesostigmata, Mesostome, Mesostom, Mesostracum, Mesotardigrada, Mesotarsal Ring, Mesotarsus, Mesotergum, Mesotheic, Mesothelae, Mesothoracic, Mesothoracotheca, Mesothorax (Medithorax), Mesothyridid, Mesotriaene, Mesotrochal, Mesotrophic, Mesoveliidae, Mesoventral, Mesozoa (Mesozoans), Mesozoic, Mesozona, Messinian, Metabasipodite (Pre-ischiopodite), Metabiosis, Metablastic, Metabola, Metabolic Pathway, Metabolic Poison, Metabolic Rate, Metabolic Water, Metabolic, Metabolism, Metabolite, Metabolous, Metaboly, Metabranchial, Metabranchial Lobe/Area, Metacentric, Metacephalon, Metacercariae, Metacerebrum, Metacestode (Plerocestoid) Stage, Metachemogenesis, Metachromasis (Metachromasy), Metachromatin, Metachronal Rhythm, Metachrosis, Metacneme, Metacoel(E), Metacorporal Valve, Metacorpus, Metacoxal Plate, Metacyclic, Metacyst, Meta-Epimeron, Meta-Episternum, Metaerucism, Metafemale (Superfemale), Metagamic Sex Determination, Metagastric, Metagastric Lobe/Area, Metagastrula, Metagenesis, Metagnathous, Metagonia, Metagynous, Metagyny, Metakinesis, Metaleptic, Metamale (Supermale), Metamere, Metameria, Metameric Sac, Metameric Segmentation, Metamerism, Metamerized, Metameron, Metameros, Metamitosis, Metamorphosis, Metamorphosis Mantle, Metamps, Metanauplii, Metanauplius Larva, Metandry, Metaneme, Metanemertini (Metanemertea), Metanephridium, Metanephromixium, Metanotal Gland, Metanotal Slopes, Metanotum, Metaparapteron, Metapeltidium, Metaphase, Metaphery, Metaphoetesis, Metaphragma, Metaplasia, Metaplasis, Metaplasm, Metaplastic Bodies, Metaplax, Metapleural, Metapleural Bristles, Metapleural Gland, Metapleuron, Metapleurum, Metapneustic, Metapodeon, Metapodium, Metapodosoma, Metapodosome, Metapolar Cells, Metapon, Metapopulation, Metapostnotum, Metapostscutellum, Metapr(a)escutum, Metapygidium, Metarbelidae (Teragriidae), Metarchon, Metarhabdions, Metascolex, Metascutellum, Metascutum, Metasepta, Metasicula, Metasitism, Metasoma (Metasome), Metasomatic, Metasome (Metasoma), Metastasis, Metastatic Life History, Metasternal Glands, Metasternal Orifice, Metasternite, Metasternum, Metasthenic, Metastigmata, Metastigmate, Metastoma (Metastome), Metastome, Metastom, Metastomial, Metastrongylidae, Metastrongyloidea, Metasyndesis, Metatarsus, Metatentorium, Metatergum, Metathetely, Metathoracotheca, Metathorax, Metatroch, Metatrochophore, Metatrophic, Metaxyphus, Metazoa (Animalia), Metazoea (Metazoaea), Metazona, Metazonite, Metazoon, Metecdysis (Postecdysis), Metelattosis, Metembryo, Metenchium, Metenteron, Metepimeron (Meta-Epimeron), Metepipodites, Metepisternum (Meta-Episternum), Metinfraepisternum, Metochy, Metoecious, Metope, Metopic, Metopic Suture, Metopidium, Metopion, Metovum, Metoxenous, Metraterm, Metrocyte, Metromorphic, Mexican Bean Beetle, M-Fibers, Michurinism, Micraesthete, Micraner, Micrergate, Micro-Aerophiles, Microbenthos, Microbiocoenosis, Microbiology, Microbiophagy, Microbiota, Microbivorous, Microblast, Microbotroph, Microcalthrop, Microcaltrop, Microcentrum, Microcephalic, Microcercous Cercaria, Microchaeta, Microcionina, Microclimate, Microcnemes, Microconjugant, Microconsumer, Microcoryphia, Microcosm (Microecosystem), Microcotylate Cercaria, Microcytes, Microdichopatric, Microdrile, Microdrili, Microecosystem, Microendemic, Microergate, Microevolution, Microfauna, Microfibril, Microfilament, Microfilariae, Microgamete, Microgametogenesis, Microgeographic Races, Micrognathozoa, Microgranular Cells, Microgyne, Microhabitat (Biotope), Microhexactine, Microic, Microlecithal, Microlepidoptera, Micromalthidae, Micromere, Micromesentery, Micromutation, Micronekton, Micronephridia, Micronephrostomal, Micronesia, Microniscus, Micronicus, Micront, Micronucleocyte, Micronutrients, Micro-Organism, Micropaleontology, Microparapatric, Micropezidae, Microphage (Microphagocyte), Microphagous (Microphagic), Micropharyngea, Microphasmatidae, Microphthalmy (Microphthalmic), Microphysidae, Microplankton, Microplasmatocyte, Micropore, Micropredator, Micropseudogyne, Micropterism, Microptery, Micropterogyne, Micropterous, Micropterygidae, Micropyle Apparatus, Micropyle, Micropyrenic (A Micropyrenic Individual), Microrhabdus, Microschizogony, Microsclere, Microscolecin, Microscolecine, Microsensillum, Microseptum, Microsmatic, Microsome (Cytosome, Peroxisome), Microsomia, Microsomites, Microspecies (Jordanon, Jordan’s Species), Microspines, Microsplanchnic, Microstome, Microsymbiont (Microsymbiote), Microtaxonomy, Microthelyphonida, Microthorax, Microthrix (Microtrices), Microtomy, Microtrabecular Latice, Microtrichia, Microtubule, Microtype, Microvilli, Microwhip Scorpions, Microxea, Microzoogeography, Microzooid, Microzoon, Microzoospore, Mictic Egg, Mictic, Micton, Micturition, Mictyridae, Midaxis, Mid-Body, Middle Bulb, Middle Cuticular Layer, Middle Field, Middle Plate, Middorsal (Dorsomedian), Midges, Mid-Gut, Midgut Gland, Midparent Value, Midventral (Ventromedian), Midventral Glands, Migrant Selection, Migrantes, Migration, Migration Coefficient, Migration Route, Migratory Cell, Migratory Locust, Miliary, Milichiidae, Milk Glands, Milleporina (Millepores), Millepunctatus, Millericrinida, Millipedes, Mimesis, Mimetic Polymorphism, Mimetic, Mimetidae, Mimic, Mimic Genes, Mimicry, Mimonectidae, Mimotype, Minchinellidae, Mindaridae, Mines, Minim, Minimum Lethal Dose (MLD), Mining Bees, Minor Elements, Minor Worker (A Minim), Minority Advantage, Miocene, Miolecithal, Miosis, Miracidium, Mire, Miridae (Capsidae), Miroidea, Mirror (Specular Membrane), Miscegenation, Misogamy, Mispairing, Mis-Sense Mutation, Mississippian, Mites, Mitochondria (Chondriosome), Mitochondrial DNA (mtDNA) Lineages, Mitochondrial Sheath, Mitome, Mitosis, Mitosome, Mitotic Index, Mitotic Spindle, Mitraria, Mixed Nest, Mixhaline, Mixis, Mixocoel, Mixoeuhaline, Mixonephridium, Mixoploidy, Mixote, Mixotroph, Mnemic, Mnemon, Mnemotaxis, Mobilina, Modern Synthesis (Neo-Darwinism), Modifer Genes, Modification, Modifier, Modioliform, Modulation, Mola, Molannidae, Molar, Molar Lobe, Molar Process (Pars Molaris), Mole Crabs, Mole Crickets, Molecular Biology, Molecular Clock, Molecular Drive, Molecular Evolution, Molecular Genetics, Molecular Hypothesis, Mollusca (erron. Molluska), Molluscicide, Molluscoid, Molluscoida (Molluscoidea), Molpadiida, Molt/Moult, Molting/Moulting Fluid, Molting/Moulting Hormone, Moltinism/Moultinism, Molula, Monacanthid, Monactinal, Monactine, Monactinellid, Monaene, Monandrous, Monarsenous, Monaster, Monaulic, Monaxial, Monaxon, Monaxonida, Monecious, Monembryonic, Monera, Money Spiders, Monhysteroidea, Monila, Monilicorn, Moniliform, Moniliform Glands, Moniligastrina, Monkey Grasshopper, Monkey Spiders, Monoallelic, Monoamniotic (erron. Monamniotic), Monoblast, Monoblastozoa, Monocellular, Monocentric, Monocerous, Monochromatic, Monochronic, Monocondylar/Monocondylic, Monocondylic Joint, Monocrepid, Monocule, Monocyclica, Monocyclic Parthenogenesis, Monocystic, Monocyte, Monodactyl, Monodactyle, Monodactylous, Monodelphic, Monodesmatic, Monodisk, Monodisc, Monodomic (Monodomous), Monoecious, Monoembryony, Monogamy, Monoganglionic, Monogastric, Monogenea (Heterocotylea), Monogenesis, Monogenetic, Monogenic (Monogeny), Monogenomic, Monogeny, Monogoneutic, Monogonoporous, Monogonta (Monogononitida), Monogony, Monogynopaedium, Monogynous (Monogyny), Monohybrid Heterosis, Monohybrid Inheritance, Monohybrid Ratio, Monohybrid, Monokaryon, Monolayer, Monolepsis, Monolophous, Monomeniscous, Monomeri, Monomeric, Monomerosomatous, Monomerous, Monometrosis, Monomial, Monomorphic, Monomorphic Colony, Monomorphic Polypides, Monomorphic Population, Monomorphism, Monomyaria/Monomyarian, Monomyaric (Monomyarian), Mononchoid, Mononeme, Mononemic, Mononeuronic, Monont, Mononuclear, Mononychous, Mononym, Monoparental, Monopectinate (Pectinibranch), Monophagous, Monophyletic (Monophyly), Monopisthocotylea, Monoplacid, Monoplacophora, Monoplanetic, Monoploid, Monoplont, Monopodial, Monopylaea (Nassellaria), Monorchic, Monosiphonic (Monosiphonous), Monosome, Monospecific, Monospermy, Monostich, Monostichous, Monostigmatous, Monostome, Monostylifera (Monostilifera), Monosy, Monosymmetrical, Monotaxic, Monothalamous, Monothecal, Monothely, Monothelious, Monothetic, Monotocardia, Monotocous (Monotokous, Uniparous), Monotomidae, Monotrichous, Monotrochal, Monotrochous, Monotrophic, Monotropic, Monotrysia, Monotrysian, Monotype, Monotypic (Monospecific), Monovalent, Monovalent Articulation, Monovarial, Monovoltine, Monovular Twins, Monoxenic (Monoxenous), Monoxenic, Dixenic, Trixenic, Monoxenous, Monozoa, Monozoic, Monozonian, Monozygotic Twins (Monovular Twins, Uniovular Twins), Monstrilloida, Montane, Monticolous, Monticule, Moonmoths, Moor, Mor, Morabine Grasshopper, Mordellidae, Mores, Morgan’s Canon, Moribund, Moriform, Morph, Morpha, Morphallaxis, Morphism, Morpho Butterflies, Morphogenes, Morphogenesis (Morphogeny), Morphogenetic Movements, Morphogenic Hormone, Morphogens, Morphological Species Concept, Morphology, Morphometry, Morphoplankton, Morphosis, Morphospecies, Morphotype, Morren’s Glands, Mortality, Morula (Mulberry Body), Morulation, Morulit, Moruloidea, Mosaic Eggs, Mosaic Evolution, Mosaic Theory, Mosaic Vision, Mosaic, Moschate, Mosquito, Moss Animals, Moth Fly, Mother Cell (Metrocyte), Mother Genus, Moths, Motile, Motivation, Motivational Conflict, Motoneurone, Motor Area, Motor Nervous System, Motor Neurocyte, Motor Neurone/Nerve (Efferent Neurone, Motoneurone), Motor Unit, Motor, Motorium, Mottled (Maculated, Blotched), Moult, Moulting, Moulting Glands (Ecdysial Glands), Moulting Hormone, Mound Nest, Mouse Unit, Mouth, Mouth Angle Plates, Mouth-Anus Axis, Mouth Capsule, Mouth Cirri, Mouth Cone, Mouth Fork, Mouth Hooks (Mandibular Sclerites), Mouth Parts (of Arthropods), Mouth Spear, Movable Finger, Movable Hook, M-Phase, Msy (Maximum Sustained Yield), Mtdna, Mtgx, Mucid, Mucific (Muciparous), Muciform, Mucigen (Mucinogen), Mucilages, Mucilaginous, Mucin, Mucinogen, Muciparous, Mucivorous, Mucocutaneous (Mucodermal), Mucocysts, Mucoid Feeding, Mucoid, Mucolytic, Mucoreous, Mucosa, Mucous Alveoli, Mucous Glands, Mucous Membrane (Mucosa), Mucro (Mucron), Mucronate Valve, Mucrones, Mucroniferous (Mucronate), Mucronulate, Muculent, Mucus, Mud Crabs, Mulberry Body, Mulberry Corpuscle, Mule Killer, Mull, Müllerian Mimicry, Müllerian Association, Müllerian Bodies, Müller’s Larva (Cephalotrocha), Müller’s Law, Müller’s Organ, Muller's Organ, Muller's Thread, Mulptiple Gene Inheritance, Multaxial, Multiarticulate (Polyarthric), Multiaxial (Multaxial), Multicamerate, Multicarinate, Multicellular, Multiciliate, Multicolonial, Multicostate, Multifactorial (Polygenic), Multifarious, Multifasciculi, Multifid, Multiflagellate (Polymastigote, Polykont), Multiforous, Multiganglionate, Multigene Family, Multigyrate, Multilaminate, Multilobate (Multilobar), Multilobulate, Multilocular (Multiloculate, Plurilocular), Multilocular Hydatid Cyst, Multinervate, Multinet, Multinodal (Multinodate), Multinomial, Multinucleate (Polynucleate, Poylnuclear, Polykaric), Multinucleolate, Multiocular, Multiordinal Crochets, Multiovulate, Multiparasitism, Multiparous, Multipartite, Multipennate, Multiperforate, Multiple Alleles, Multiple Allelomorphs (Polyalleles Polygenes), Multiple Factors, Multiplicate, Multipolar, Multiporous, Multiporous Septulum, Multipotent, Multiradiate, Multiramous, Multiramous Plasmatocyte, Multiramous Vermiform Cell, Multiseptate, Multiserial, Multiserial Bands, Multiserial Circle, Multiserial Crochets, Multiseriate (Multiserial), Multisetiferous, Multispinose, Multispiral, Multistriate, Multisulacte, Multitentaculate, Multituberculate, Multivalve, Multivalved, Multivincular, Multivoltine, Multizooidal Bud, Mumia, Mumia Pseudonympha, Mune, Munite, Mural Lacuna, Mural Plates, Mural Spine, Mural Tooth, Muralium, Muricacea, Muricate, Muricidae, Muriform, Murine, Murrayonida, Muscicoline, Muscidae, Muscidiform Larva, Muscle, Muscle Banners, Muscle Column, Muscle Couples, Muscle Endplate, Muscle Fibers, Muscle Insertion, Muscle Layer(s), Muscle Scar (Muscle Imprint), Muscle Tails, Muscle Terminology, Muscular Pad, Muscular Sheath, Muscularis, Muscularis Externa, Muscularis Mucosae, Musculature, Musculocutaneous, Musculoepithelial, Musculospiral, Musculotendinous (Myotendinal), Musculus Bursae Basalis, Musculus Costae Dorsalis, Musculus Costae Lateralis Externus Anterior, Musculus Costae Lateralis Externus Posterior, Musculus Costerum Lateralium Internis, Museum Beetle, Mushroom Body, Mushroom Gland, Mussel Shrimps, Mussels, Mutable Connective Tissue, Mutable Gene, Mutafacient, Mutagen, Mutagenic, Mutant, Mutate, Mutation, Mutational Load, Mutation Frequency, Mutation Pressure, Mutation Rate, Mutation Theory, Mutator, Mutelidae, Muticate (Muticous), Mutilation, Mutillidae, Mutilous, Mutual Translocation, Mutualism, Myarian (Myaric), Mycalina, Mycetangium, Mycetocyte, Mycetome, Mycetometochy, Mycetophage (Mycetophagous), Mycetophagidae, Mycetophilidae, Mycohelminths, Mycophagous (Fungivorous), Mycosis, Mycotoxins, Mydaidae, Myelin, Myelospongium, Mygalomorphae (Orthognatha), Myiasis, Myina, Mymaridae, Myoblast, Myochordotonal Organ, Myochrome, Myocyte, Myodochidae, Myodocopa, Myodynamic, Myoelastic, Myoepithelial (Musculoepithelial), Myofibril, Myofilaments, Myogenesis, Myogenic Impulse, Myoglobin (Myohaemoglobin), Myoid, Myoida, Myolemma, Myology, Myomeres, Myone, Myoneural, Myoneural Junction, Myoneure, Myonicity, Myophore, Myophrisks, Myoplasm, Myopsida, Myosin, Myostracum, Myotactic Reflex, Myotasis, Myotendinal, Myotome, Myotube, Myriapoda (Myriopoda), Myriapods, Myrientomata, Myrmeciinae, Myrmecobiosis, Myrmecochore, Myrmecochorous (Myrmecochory), Myrmecoclepty, Myrmecodomatium, Myrmecole, Myrmecology, Myrmecophagous, Myrmecophile, Myrmecophilidae (Myrmecophil-Inae), Myrmecophilous, Myrmecophily, Myrmecophobic, Myrmecophyte, Myrmecosymbiosis, Myrmecotrophic, Myrmecoxenous, Myrmeleontidae, Myrmicinae, Mysidacea, Mysis Larva (Schizopod Larva), Mystacial, Mystacine, Mystacocarida, Mystax, Mytilidae, Mytiliform, Mytiloida, Myxamoeba, Myxillina, Myxocyte, Myxophaga, Myxospongiae, Myxotrophic, Myzesis, Myzorhynchus, Myzostomida, Myzostomidae.