/ Dictionary / Index P pulp cavity: Meaning and Definition of Find definitions for: pulp' cav"ity Pronunciation: [key] — Dentistry. Dentistry. the entire space occupied by pulp, composed of the root canal and pulp chamber. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. pulp canal therapy pulp chamber Related Content Daily Word Quiz: tactful Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language