/ Dictionary / Index S stagnate: Meaning and Definition of Find definitions for: stag•nate Pronunciation: (stag'nāt), [key] — -nat•ed, -nat•ing. —v.t. to make stagnant. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: stagnate (Thesaurus) stagnant stagnation mastitis Related Content Daily Word Quiz: mamba Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language