/ Dictionary / Index C cladogram: Meaning and Definition of Find definitions for: clad•o•gram Pronunciation: (klad'u-gram", klā'du-), [key] — n. Biol. a branching diagram depicting the successive points of species divergence from common ancestral lines without regard to the degree of deviation. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: cladogram (Thesaurus) cladogenesis cladophyll 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