/ Dictionary / Index C cladogenesis: Meaning and Definition of Find definitions for: clad•o•gen•e•sis Pronunciation: (klad"u-jen'u-sis, klā"du-), [key] — n. Biol. evolutionary change by the branching off of new species from common ancestral types. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cladode cladogram Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language