Kenogenesis and Recapitulation

Kenogenesis noun - Introduction during embryonic development of characters or structure not present in the earlier evolutionary history of the strain or species (such as the addition of the placenta in mammalian evolution).

Recapitulation is an antonym for kenogenesis.

Recapitulation noun - Emergence during embryonic development of various characters or structures that appeared during the evolutionary history of the strain or species.

Kenogenesis is an antonym for recapitulation.

Nearby Words: recapitulate, recapitulated, recapitulatory, recapitulative, recapitulating