heterochrony

[ het-uh-rok-ruh-nee ]
/ ˌhɛt əˈrɒk rə ni /

noun Biology.

a genetic shift in timing of the development of a tissue or anatomical part, or in the onset of a physiological process, relative to an ancestor.

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Origin of heterochrony

1875–80; hetero- + chron- + -y3; compare German Heterochron

OTHER WORDS FROM heterochrony

het·er·o·chron·ic [het-er-uh-kron-ik], /ˌhɛt ər əˈkrɒn ɪk/, het·er·och·ro·nis·tic, het·er·och·ro·nous, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Scientific definitions for heterochrony

heterochrony
[ hĕtə-rō-krŏn′ē ]

A change in the timing or duration of an organism's ontogenetic development compared with an ancestral species, resulting in morphological differences between ancestor and descendant.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.