/ Dictionary / Index P perspiration: Meaning and Definition of Find definitions for: per•spi•ra•tion Pronunciation: (pûr'spu-rā'shun), [key] — n. a salty, watery fluid secreted by the sweat glands of the skin, esp. when very warm as a result of strenuous exertion; sweat. the act or process of perspiring. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: perspiration (Thesaurus) perspicuous perspiratory 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