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Related to atheromatous: Atheromatous plaques
n. pl. ath·er·o·mas or ath·er·o·ma·ta (-mə-tə)
A lipid-containing lesion that forms on the innermost layer of the wall of an artery in atherosclerosis; a plaque.
[Latin athērōma, tumor full of pus that is like gruel, from Greek, from athēra, gruel, variant of atharē, gruel, perhaps of Egyptian origin, or perhaps from an Indo-European adstrate source akin to Hittite ḫattar, a kind of grain or pulse, and Latin ador, emmer.]
ath′er·o·ma·to′sis (-tō′sĭs) n.
ath′er·om′a·tous (-rŏm′ə-təs, -rō′mə-) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.