/ Dictionary / Index R regelation: Meaning and Definition of Find definitions for: re•ge•la•tion Pronunciation: (rē"ju-lā'shun), [key] — n. Physics. a phenomenon in which the freezing point of water is lowered by the application of pressure; the melting and refreezing of ice, at constant temperature, caused by varying the pressure. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. regelate Régence Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language