/ Dictionary / Index G glass ceiling: Meaning and Definition of Find definitions for: glass' ceil'ing Pronunciation: [key] an upper limit to professional advancement, esp. as imposed upon women, that is not readily perceived or openly acknowledged. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Glassboro glass curtain Related Content Daily Word Quiz: denizen Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language