anagenesis: Meaning and Definition of

an•a•gen•e•sis

Pronunciation: (an"u-jen'u-sis), [key]
— n.
  1. the progressive evolution of a species. Cf. catagenesis.
  2. the regeneration of tissue.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.