/ Dictionary / Index P proteose: Meaning and Definition of Find definitions for: pro•te•ose Pronunciation: (prō'tē-ōs"), [key] — n. Biochem. any of a class of soluble compounds derived from proteins by the action of the gastric juices, pancreatic juices, etc. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. proteolysis protero- Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language