fronts is a form of:

Atavism



noun
1.
(resemblance to remote ancestors rather than parents, recurrences of disease after some generations) ពន្ទុនិស្ស័យ
ENGLISH MEANING
noun
1.
The recurrence, or a tendency to a recurrence, of the original type of a species in the progeny of its varieties; resemblance to remote rather than to near ancestors; reversion to the original form.
2.
The recurrence of any peculiarity or disease of an ancestor in a subsequent generation, after an intermission for a generation or two.