Dictionary.com
definitions

dichotomize

[dahy-kot-uh-mahyz]
verb (used with object), di·chot·o·mized, di·chot·o·miz·ing.
  1. to divide or separate into two parts, kinds, etc.
verb (used without object), di·chot·o·mized, di·chot·o·miz·ing.
  1. to become divided into two parts; form a dichotomy.
Also especially British, di·chot·o·mise.

Origin of dichotomize

1600–10; < Late Latin dichotom(os) dichotomous + -ize
Related formsdi·chot·o·mist [dahy-kot-uh-mist] /daɪˈkɒt ə mɪst/, noundi·chot·o·mis·tic, adjectivedi·chot·o·mi·za·tion, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for dichotomise

dichotomize

dichotomise

verb
  1. to divide or become divided into two parts or classifications
Derived Formsdichotomist, noundichotomization or dichotomisation, 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