/ Dictionary / Index P Pacific salmon: Meaning and Definition of Find definitions for: Pacif'ic salm'on Pronunciation: [key] any salmon of the genus Oncorhynchus, esp. the chinook salmon, O. tshawytscha. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Pacific Plate Pacific sturgeon Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language