/ Dictionary / Index E elastase: Meaning and Definition of Find definitions for: e•las•tase Pronunciation: (i-las'tās, -taz), [key] — n. Biochem. a pancreatic protease that catalyzes the hydrolysis of elastin and other related proteins to polypeptides and amino acids. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: elastase (Thesaurus) elastance elastic Related Content Daily Word Quiz: opulent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language