/ Dictionary / Index D differentia: Meaning and Definition of Find definitions for: dif•fer•en•ti•a Pronunciation: (dif"u-ren'shē-u, -shu), [key] — pl. -ti•ae the character or attribute by which one species is distinguished from all others of the same genus. the character or basic factor by which one entity is distinguished from another. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: differentia (Thesaurus) different differentiable Related Content Daily Word Quiz: reclusive Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language