/ Dictionary / Index D dissert: Meaning and Definition of Find definitions for: dis•sert Pronunciation: (di-sûrt'), [key] — v.i. to discourse on a subject. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. dissepiment dissertate Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language