/ Dictionary / Index P powerboater: Meaning and Definition of Find definitions for: pow•er•boat•er Pronunciation: (pou'ur-bō"tur), [key] — n. a powerboat owner or operator. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. powerboat power brake Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language