homeotic

adjective

ho·​me·​o·​tic ˌhō-mē-ˈä-tik How to pronounce homeotic (audio)
ˌhä-
: relating to, caused by, or being a gene producing a usually major shift in the developmental fate of an organ or body part

Word History

Etymology

from homeosis, homoeosis a shift in structural development, from Greek homoiōsis assimilation, resemblance, from homoioun to make like, from homoios

First Known Use

1894, in the meaning defined above

Time Traveler
The first known use of homeotic was in 1894

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Cite this Entry

“Homeotic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/homeotic. Accessed 4 Jul. 2026.

Medical Definition

homeotic

adjective
ho·​me·​ot·​ic
variants also homoeotic
: relating to, caused by, or being a homeotic gene
a homeotic mutant causing replacement of an antenna by a leg in a fruit fly
homeotically adverb
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