/ Dictionary / Index D dissipate: Meaning and Definition of Find definitions for: dis•si•pate Pronunciation: (dis'u-pāt"), [key] — v., -pat•ed, -pat•ing. —v.t. to scatter in various directions; disperse; dispel. to spend or use wastefully or extravagantly; squander; deplete: to dissipate one's talents; to dissipate a fortune on high living. —v.i. to become scattered or dispersed; be dispelled; disintegrate: The sun shone and the mist dissipated. to indulge in extravagant, intemperate, or dissolute pleasure. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: dissipate (Thesaurus) dissimulation dissipated Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language