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taxon

[tak-son]
noun, plural tax·a [tak-suh] /ˈtæk sə/.
  1. a taxonomic category, as a species or genus.

Origin of taxon

1945–50; < Greek táx(is) taxis1 + -on neuter noun ending; see -on1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for taxon

taxon

noun plural taxa (ˈtæksə)
  1. biology any taxonomic group or rank

Word Origin for taxon

C20: back formation from taxonomy
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for taxon
n.

1929, from German (1926), shortened from taxonomie (see taxonomy).

Online Etymology Dictionary, © 2010 Douglas Harper
taxon in Medicine

taxon

[tăk′sŏn′]
n. pl. tax•a (tăk′sə)
  1. 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.
taxon in Science

taxon

[tăk′sŏn′]
Plural taxa
  1. A taxonomic category or group, such as a phylum, order, family, genus, or species.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.