The Collaborative International Dictionary of English v.0.48:
Atheromatous \Ath`e*rom"a*tous\, a. (Med.) Of, pertaining to, or having the nature of, atheroma. --Wiseman. [1913 Webster]WordNet (r) 3.0 (2006):
atheromatous adj 1: of or relating to or resembling atheroma; "atheromatous degeneration of the arteries" [syn: atheromatous, atheromatic]