/ Dictionary / Index C custard cup: Meaning and Definition of Find definitions for: cus'tard cup" Pronunciation: [key] a heat-resistant porcelain or glass cup in which an individual custard is baked. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. custard apple custard-pie Related Content Daily Word Quiz: feline Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language