/ Dictionary / Index V Vaseline: Meaning and Definition of Find definitions for: Vas•e•line Pronunciation: (vas'u-lēn", vas"u-lēn'), [key] — Trademark. Trademark. a brand of petrolatum. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: vaseline (Thesaurus) vas efferens Vashti Related Content Daily Word Quiz: veto Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language