/ Dictionary / Index U upwell: Meaning and Definition of Find definitions for: up•well Pronunciation: (up-wel'), [key] — v.i. to well up, as water from a spring. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. upwarp upwelling Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language