/ Dictionary / Index A atherosclerosis: Meaning and Definition of Find definitions for: ath•er•o•scle•ro•sis Pronunciation: (ath"u-rō-sklu-rō'sis, a"-), [key] — n. Pathol. a common form of arteriosclerosis in which fatty substances form a deposit of plaque on the inner lining of arterial walls. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: atherosclerosis (Thesaurus) atheroma Atherton Related Content Daily Word Quiz: mamba Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language