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Science & Tech > Biology > Taxonomy


Now updated for CSW15. New words, if any, and new inflections of existing words, are shown in red.


amniote a vertebrate that develops an amnion during the embryonic stage.
amniotic relating to an amniote, a vertebrate that develops an amnion during the embryonic stage.
animal a living organism typically capable of voluntary motion and sensation (adj.) of the nature of an animal
animalian of or like an animal.
animalic of or like an animal.
animallike like an animal.
annectent having intermediate features between two taxa.
arthropod any member of the phylum Arthropoda, members of which (eg insects, arachnids, and crustaceans) are characterized by segmented bodies and jointed limbs.
arthropodal of or like an arthropod.
arthropodan of or like an arthropod.
arthropodous of or like an arthropod.
bimanal relating to Bimana, two-handed animals, an obsolete name for mankind.
biped a two-footed animal.
cephalochordate any of a number of chordate fishlike animals (including the lancelets and amphioxus), having a persisting notochord projecting beyond the nerve cord to the end of the snout.
chelicerate an arthropod of the group Chelicera, arachnids and horseshoe-crabs.
chemoautotrophy the production of energy by the oxidation of inorganic compounds, such as iron, ammonia and hydrogen sulphide.
chemotaxonomist one who practises chemotaxonomy.
chemotaxonomy the classification of plants and animals based on similarities and differences in biochemical composition.
clade a group of organisms that have evolved from a common ancestor.
cladism adherence to cladistic theories of taxonomy.
cladist one who adheres to cladistic theories of taxonomy.
cladistic relating to cladism, a method of taxonomy.
cladistically (Adv.) CLADISTIC, relating to cladism, a method of taxonomy.
cladistics taxonomic theory distinguishing by common ancestor.
cladogram a branching diagram showing the development of a clade.
congenerous of the same genus, origin or nature.
conspecific a plant or animal of the same species.
cotype a taxonomic type.
cytotaxonomic relating to cytotaxonomy.
cytotaxonomist a practitioner of cytotaxonomy.
cytotaxonomy the classification of organisms based on cell structure, esp the number, shape, etc., of the chromosomes.
deuterostome any of a major division of the animal kingdom that includes the bilaterally symmetrical animals.
didelphid any member of the marsupial family Didelphidae.
diphyletic descended from two distinct ancestral groups.
dryopithecine a gorilla, chimpanzee or man.
echiuroid any of a taxon of marine worms.
ectotherm a cold-blooded animal.
endoproct a small animal living in water.
endotherm a warm-blooded animal.
enteropneust any animal of the Enteropneusta, literally, gut-breathers.
enteropneustal of or like an enteropneust.
eutherian belonging to the Eutheria, placental mammals; (noun) a placental mammal (as distinct from marsupial).
folksonomy a system of classification that makes use of terms that occur naturally in the language of users of the system.
genus (Lat.) a taxonomic group of lower rank than a family.
gnathostomatous of or like a gnathostome.
gnathostome any vertebrate of the superclass Gnathostomata, having a mouth with jaws, including all vertebrates except the agnathans.
haplotype a single species contained in a genus.
hepaticologist one who studies liverworts.
herptile relating to both amphibian and reptile.
heterospecific an organism of a different species or group.
hexapodal relating to Hexapoda, insects.
holotype an original type specimen used in defining and describing a species or variety.
holotypic relating to a holotype, an original type specimen used in defining and describing a species or variety.
hominian a manlike animal.
hominine characteristic of man.
hominoid relating to the superfamily Hominoidea, comprising man and modern apes and their extinct ancestors; (noun) a member of this family.
homo (Lat.) man generically (sl.) a homosexual
homological having the same relative structure.
homologically (Adv.) HOMOLOGICAL, having the same relative structure.
homologous having the same relative structure.
homotypic conforming to normal type.
ichthic resembling or relating to a fish.
ichthyic resembling or relating to a fish.
ichthyopsid a member of the Ichthyopsida, amphibians, fishes and fishlike vertebrates.
ichthyopsidan a member of the Ichthyopsida, amphibians, fishes and fishlike vertebrates.
infraspecific of taxonomic divisions of a lower rank than species.
intergeneric existing, occurring, or arising between genera.
interspecies a species between other species.
interspecific existing, occurring, or arising between species.
isotype in taxonomy, a duplicate of the holotype, a specimen made from the same collection as the holotype.
isotypic of or like an isotype, a duplicate of the holotype, a specimen made from the same collection as the holotype.
lectotype a specimen or similar element selected from the original material to serve as the nomenclatural type when a holotype was not orig designated, or is missing.
macrophylum a large phylum, as in New Guinea macrophylum.
malacopterygian belonging to the Malacopterygii, a soft-finned suborder of bony fishes, including herrings and salmon.
malacostracous relating to the Malacostra, the best-known class of crustaceans, including crabs, lobsters, shrimps, prawns, etc.
mammal any of a class of warm-blooded vertebrates.
mammalian a mammal.
mammality the state of being a mammal.
mammifer a mammal.
marsupialian a marsupial mammal.
metatherian of, relating to, or belonging to the Metatheria, a subclass of mammals comprising the marsupials; (noun) any metatherian mammal; a marsupial.
metazoal relating to the metazoa, animals more complex than a unicellular protozoan.
metazoan relating to to the Metazoa; (noun) any animal more complex than a unicellular protozoan.
metazoic of or pertaining to the Metazoa.
metazoon any animal more complex than a unicellular protozoan.
microspecies a genetically distinct group of organisms within a species.
monodelphian any placental mammal that is a member of the group Monodelphi.
monodelphic relating to the Monodelphia, placental mammals.
monodelphous relating to the Monodelphia, placental mammals.
monophyletic derived from a single ancestral line, as opposed to polyphyletic.
monotype a monotypic genus or other taxon.
monotypic of a genus, containing only one species.
nekton (Greek) the totality of swimming organisms in a body of water.
nektonic like nekton, the totality of swimming organisms in a body of water.
nomenclative relating to nomenclature.
nomenclatorial relating to or connected with nomenclature.
nomenclatural relating to or connected with nomenclature.
nomenclature the study of the application of the names of taxa.
nonruminant an animal that is not a ruminant.
oomycete an organism formerly classified as a fungus.
organism any form of animal or plant life.
ornithic of or relating to birds.
outgroup a group of people outside one's own group; a term in cladistics.
ovipara an artifical division of vertebrates, including those that lay eggs. No -S.
perissodactyl an animal of the Perissodactyla, a division of ungulates with an odd number of toes, including the horse, tapir and rhinoceros.
perissodactyle an animal of the Perissodactyla, a division of ungulates with an odd number of toes, including the horse, tapir and rhinoceros.
phylar related to a phylum, a main division of the animal and vegetable kingdom.
phylic related to a phylum, a main division of the animal and vegetable kingdom.
phylon a main division of the animal and vegetable kingdom.
phylum (Lat.) a main division of the animal or vegetable kingdom.
placoderm covered with bony scales; (noun) a fish covered with bony scales.
polychotomy division into many parts, eg on a cladogram.
polyped a many-legged animal.
polypod (Greek) a many-legged animal.
polytypic of a taxon containing two or more taxa of lower ranks.
polytypical of a taxon containing two or more taxa of lower ranks.
praecoces (Lat.) a division of birds including those whose young are able to run about when first hatched.
praecocial of or relating to birds whose young are hatched with a covering of down and can leave the nest at once to seek food.
precocial of or relating to birds whose young are hatched with a covering of down and can leave the nest at once to seek food; (noun) a bird having such young.
protochordate a member of the Protochordata.
quadruped a four-footed animal.
ruminant an animal that chews the cud.
ruminantly (Adv.) RUMINANT.
sapiens (Lat.) pertaining to recent man.
saprobial of or like a saprobe, an organism living in foul water.
saprobiont any organism, esp a fungus or bacterium, that lives and feeds on dead organic matter.
saprotroph any organism, esp a fungus or bacterium, that lives and feeds on dead organic matter.
saprotrophic of or like a saprotroph.
sauropsidan belonging to the Sauropsida, one of the main divisions of Vertebrata including birds and reptiles; (noun) a member of the Sauropsida.
schizophyte a plant of the Schizophyta, an obsolete grouping of organisms that multiply only by fission, including bacteria and blue-green algae.
schizophytic of or like a schizophyte, an obsolete grouping of organisms that multiply only by fission.
simplicidentate denoting a member of the Simplicidentata, rodents.
soliped a mammal having a single hoof on each foot, as the horses and asses.
speciate to form a species.
spermaphyte any member of the Spermatophyta, seed-bearing plants.
subfamily a taxonomic division of a family, of one or more genera.
subgeneric of or pertaining to a subgenus.
subgenerically (Adv.) SUBGENERIC, of or pertaining to a subgenus.
subgenre a subdivision of a genre.
subgenus a taxonomic grouping ranking next below a genus.
subkingdom a taxonomic division of a kingdom; a phylum.
suborder a subdivision of an order.
subphylar relating to a subphylum.
subphylum (Lat.) the taxonomic division below a phylum.
subrace a subdivision of a race.
subspecies a population whose characteristics are subtly distinct from the nominate form.
subspecific relating to a subspecies.
subspecifically (Adv.) SUBSPECIFIC, relating to a subspecies.
subtaxon a subdivision of a taxon.
subtribe a division of a tribe; a group of genera of a little lower rank than a tribe.
subtype a type that is subordinate to or included in another type.
subtypical relating to a subtype.
subvariety a subordinate variety, or a division of a variety.
superclass a taxonomic category between class and phylum.
superfamily a category of biological classification ranking below an order and above a family.
superkingdom a taxonomical classification comprising several kingdoms.
superorder a group intermediate in importance between an order and a subclass.
superordinal relating to a superorder.
superphylum a taxonomical division above phylum.
sympatric pertaining to species the ranges of which overlap, i.e. species occupying the same regions but not interbreeding.
sympatrically (Adv.) SYMPATRIC, pertaining to species the ranges of which overlap.
systematics the new science of taxonomy.
taxon a group of plants or animals classified according to their presumed natural relationships.
taxonomic relating to taxonomy, the science of classifying living organisms.
taxonomical relating to taxonomy.
taxonomically (Adv.) TAXONOMICAL, relating to taxonomy.
taxonomy the science of classifying living organisms.
tetrapod a four-footed animal; any vertebrate higher than fishes (i.e. amphibians, reptiles, birds, and mammals).
therian belonging to the subclass comprising marsupials and placentals; (noun) a therian mammal.
topotype a specimen collected in the same locality as an original.
trihybrid a hybrid differing from its parents in three independently heritable characteristics.
trinomialist a proponent of trinomialism.
typal relating to a type, typical.
urochordal of or pertaining to the Urochorda.
vivipara (Lat.) an artificial division of vertebrates including those that produce their young alive.
xenogeneic descended from a member of another species.
zoon an animal which is the sole product of a single egg, as opposed to zooid (verb) to zoom
zootype an animal serving as a type.
zootypic of or like a zootype, an animal serving as a type.