/ Dictionary / Index D dendrogram: Meaning and Definition of Find definitions for: den•dro•gram Pronunciation: (den'dru-gram"), [key] — n. Biol. a treelike diagram depicting evolutionary changes from ancestral to descendant forms, based on shared characteristics. Cf. cladogram, phenogram. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. dendrochronology dendroid Related Content Daily Word Quiz: candor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language