cainogenesis
1. [ noun ] (biology,embryology) introduction during embryonic development of characters or structure not present in the earlier evolutionary history of the strain or species (as addition of the placenta in mammalian evolution)
Synonyms: kenogenesis caenogenesis kainogenesis cenogenesis
Related terms: palingenesis growth
Similar spelling:   caenogenesis
  cenogenesis
  Canna_generalis