/ Dictionary / Index G glass jaw: Meaning and Definition of Find definitions for: glass' jaw' Pronunciation: [key] a person's jaw, esp. that of a boxer, that is vulnerable to even a light blow. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. glassine glass lizard Related Content Daily Word Quiz: tenacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language