/ Dictionary / Index U umbrella pine: Meaning and Definition of Find definitions for: umbrel'la pine" Pronunciation: [key] a Japanese evergreen tree, Sciadopitys verticillata, having linear leaves growing in umbrellalike whorls, cultivated as an ornamental. See(def. 1). Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. umbrella palm umbrella plant Related Content Daily Word Quiz: slough Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language