/ Dictionary / Index P pressure-treated: Meaning and Definition of Find definitions for: pres•sure-treat•ed Pronunciation: (presh'ur-trē"tid), [key] — adj. (of wood) treated with a chemical or chemicals applied under pressure to reduce such problems as insect infestation, decay, and rotting. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. pressure suit pressure-vacuum valve Related Content Daily Word Quiz: pristine Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language