/ Dictionary / Index A amyloid: Meaning and Definition of Find definitions for: am•y•loid Pronunciation: (am'u-loid"), [key] — n. a waxy, translucent substance, composed primarily of protein fibers, that is deposited in various organs of animals in certain diseases. a nonnitrogenous food consisting esp. of starch. —adj. of, resembling, or containing amylum. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: amyloid (Thesaurus) amylogen amyloidosis Related Content Daily Word Quiz: lyceum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language