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heterochrony

[het-uh-rok-ruh-nee]
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noun Biology.
  1. 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
Related formshet·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. 2018

Examples from the Web for heterochronic

Historical Examples

  • Independent variability of the stages (heterochronic variability), 403.

    Studies in the Theory of Descent (Volumes 1 and 2)

    August Weismann

  • Heterochronic variability is not explained by assuming a phyletic vital force, 410.