noun
or ho·me·o·sis ˌhōmēˈōsə̇s, ˌhäm-
( -es )
Etymology: New Latin, from Greek homoiōsis assimilation, resemblance, from homoioun to make like, become like (from homoios like) + -sis — more at home-
biology : an assumption by one part or structure in a series of a form characteristic of another member of the series
with a wing of the fore-wing type in place of one of the normal hind wings, it provides an extreme instance of homoeosis — G.E.Hyde
— compare heteromorphosis