from The American Heritage® Dictionary of the English Language, 4th Edition
- transitive v. To drive away; disperse.
- transitive v. To attenuate to or almost to the point of disappearing: The wind finally dissipated the smoke. See Synonyms at scatter.
- transitive v. To spend or expend intemperately or wastefully; squander.
- transitive v. To use up, especially recklessly; exhaust: dissipated their energy. See Synonyms at waste.
- transitive v. To cause to lose (energy, such as heat) irreversibly.
- intransitive v. To vanish by dispersion: The dark clouds finally dissipated.
- intransitive v. To indulge in the intemperate pursuit of pleasure.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To drive away, disperse.
- v. To use up or waste.
- v. To vanish by dispersion.
from the GNU version of the Collaborative International Dictionary of English
- transitive v. To scatter completely; to disperse and cause to disappear; -- used esp. of the dispersion of things that can never again be collected or restored.
- transitive v. To destroy by wasteful extravagance or lavish use; to squander.
- intransitive v. To separate into parts and disappear; to waste away; to scatter; to disperse; to vanish
- intransitive v. To be extravagant, wasteful, or dissolute in the pursuit of pleasure; to engage in dissipation.
from The Century Dictionary and Cyclopedia
- To cause to pass or melt away; scatter or drive off in all directions; dispel: as, wind dissipates fog; the heat of the sun dissipates vapor; mirth dissipates care.
- To expend wastefully; scatter extravagantly or improvidently; waste, as property by foolish outlay, or the powers of the mind by devotion to trivial pursuits.
- Synonyms Dissipate, Dispel, Disperse, Scatter. These words are often interchangeable. Dissipate and dispel, however, properly apply to the dispersion of things that vanish and are not afterward collected; dissipate is the more energetic, and dispel is more often used figuratively: as, to dissipate vapor; to dissipate a fortune; to dispel doubt; to dispel uncertainty. Disperse and scatter are applied to things which may be again brought together: as, to scatter or disperse troops; or to things which are quite as real and tangible after scattering or dispersing as before: as, to gather up one's scattered wits.
- To become scattered, dispersed, or diffused; come to an end or vanish through dispersion or diffusion.
- To engage in extravagant, excessive, or dissolute pleasures; be loose in conduct.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. live a life of pleasure, especially with respect to alcoholic consumption
- v. spend frivolously and unwisely
- v. move away from each other
- v. to cause to separate and go in different directions
Middle English dissipaten, from Latin dissipāre, dissipāt-.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin dissipatus, past participle of dissipare, also written dissupare ("to scatter, disperse, demolish, destroy, squander, dissipate"), from dis- ("apart") + supare ("to throw"), also in comp. insipare ("to throw into"). (Wiktionary)