Answer: atavism

AnswerCrossword Clue
ATAVISMBiological reversion
ATAVISMThrowback
ATAVISMReversion to a more primitive type.
ATAVISMReversion to more primitive type.
ATAVISMReversion to primitive type.
ATAVISMReversion to type.
ATAVISMReversion to the primitive.
ATAVISMReversion to remote ancestry.
ATAVISMReversion
ATAVISMReversion to an earlier type
atavismthe reappearance of remote ancestral traits
atavismthe reappearance of ancestral characteristics