/ Dictionary / Index C Ceylon moss: Meaning and Definition of Find definitions for: Ceylon' moss' Pronunciation: [key] a seaweed, Gracilaria lichenoides, of Ceylon and the East Indies: one of the algae from which agar is obtained. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Ceylon gooseberry Cézanne Related Content Daily Word Quiz: eccentric Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language