plural of taxon. Unabridged


noun, plural taxa [tak-suh] .
a taxonomic category, as a species or genus.

1945–50; < Greek táx(is) taxis1 + -on neuter noun ending; see -on1 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
taxon (ˈtæksɒn)
n , pl taxa
biology any taxonomic group or rank
[C20: back formation from taxonomy]

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

taxon tax·on (tāk'sŏn')
n. pl. tax·a (tāk'sə)
A taxonomic category or group, such as a phylum, order, family, genus, or species.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
taxon   (tāk'sŏn')  Pronunciation Key 
Plural taxa
A taxonomic category or group, such as a phylum, order, family, genus, or species.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Britannica


any unit used in the science of biological classification, or taxonomy. Taxa are arranged in a hierarchy from kingdom to subspecies, a given taxon ordinarily including several taxa of lower rank. In the classification of protists, plants, and animals, certain taxonomic categories are universally recognized; in descending order, these are kingdom, phylum (in plants, division), class, order, family, genus, species, and subspecies, or race. Rules for naming the various taxa are the province of biological nomenclature (q.v.).

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
The film was already successful with the taxa of the first two.
We had several talks on plesiosaurs, including one on inner ears and a few on new taxa.
The two named taxa are predominantly outcrossed and are effectively self-incompatible.
Though related, these taxa means that the two are not intimately related.
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