/ Dictionary / Index P pressure head: Meaning and Definition of Find definitions for: pres'sure head" Pronunciation: [key] — Physics. Physics. head (def. 32). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. pressure group pressure hull Related Content Daily Word Quiz: crutiny Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language