atavismn.
/ˈatəvɪz(ə)m/, U.S. /ˈædəˌvɪzəm/ a. Resemblance to grand-parents or more remote ancestors rather than to parents; tendency to reproduce the ancestral type in animals or plants.
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the world > life > biology > biological processes > genetic activity > heredity or hereditary descent > [noun] > production unlike parents > atavism
retrogression1826
atavism1833
reversion1833
recurrence1862
1833 J. Rennie Sci. Gardening 113 Children often resemble their grandfathers or grandmothers more than their immediate parents..This propensity is termed Atavism by Duchesne.
1872 W. Bagehot Physics & Politics 218 Some mysterious atavism—some strange recurrence to a primitive past.
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b. Pathology. Recurrence of the disease or constitutional symptoms of an ancestor after the intermission of one or more generations.
This entry has not yet been fully updated (first published 1885; most recently modified version published online December 2021).
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