/ Dictionary / Index P pinchcock: Meaning and Definition of Find definitions for: pinch•cock Pronunciation: (pinch'kok"), [key] — n. a clamp for compressing a flexible pipe, as a rubber tube, in order to regulate or stop the flow of a fluid. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. pinchbottle pincheck Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language