/ Dictionary / Index D discoid: Meaning and Definition of Find definitions for: dis•coid Pronunciation: (dis'koid), [key] — adj. having the form of a discus or disk; flat and circular. (of a composite flower) consisting of a disk only, without rays. —n. something in the form of a disk. an excavator with a disklike blade. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: discoid (Thesaurus) discography discolor Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language