atavism


at·a·vism

noun \ˈat-ə-ˌviz-əm\

Definition of ATAVISM

1
: recurrence in an organism of a trait or character typical of an ancestral form and usually due to genetic recombination
2
: an individual or character manifesting atavism : throwback
at·a·vis·tic \ˌat-ə-ˈvis-tik\ adjective
at·a·vis·ti·cal·ly \-ti-k(ə-)lē\ adverb

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