/ Dictionary / Index P prolation: Meaning and Definition of Find definitions for: pro•la•tion Pronunciation: (prō-lā'shun), [key] — n. Medieval Music. the time relationship between a semibreve and a minim in mensural notation. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. prolate prole Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language