/ Dictionary / Index M mermaid's purse: Meaning and Definition of Find definitions for: mer'maid's purse' Pronunciation: [key] the horny or leathery egg case of certain cartilaginous fishes, as skates. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. mermaid mermaid's wineglass Related Content Daily Word Quiz: censure Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language