1. a branch of taxonomy in which characteristics of cellular structures, particularly of somatic chromosomes, are used to classify organisms.

Origin of cytotaxonomy

First recorded in 1925–30; cyto- + taxonomy
Related formscy·to·tax·o·nom·ic [sahy-toh-tak-suh-nom-ik] /ˌsaɪ toʊˌtæk səˈnɒm ɪk/, adjectivecy·to·tax·o·nom·i·cal·ly, adverbcy·to·tax·on·o·mist, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for cytotaxonomy


  1. classification of organisms based on cell structure, esp the number, shape, etc, of the chromosomes
Derived Formscytotaxonomic, adjectivecytotaxonomist, noun
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

cytotaxonomy in Medicine


  1. The classification of organisms based on cellular structure and function, especially on the structure and number of chromosomes.
Related formscy′to•tax′o•nomic (-tăk′sə-nŏmĭk)′to•tax•ono•mist n.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.