• synonyms


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