/ Dictionary / Index V vapor tension: Meaning and Definition of Find definitions for: va'por ten"sion Pronunciation: [key] See the maximum vapor pressure possible, at a given temperature, in a system composed of a liquid or solid substance in contact with the vapor of that substance. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. vapor pressure vapor trail Related Content Daily Word Quiz: censure Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language