atheroid adjective3 •From or similar to an atheroma (any sense).The atheroid plaque in the diabetic subject contains more cholesterol ester and phospholipid, but less neutral fat, than that of the non-diabetic individual. — 1958 •Characterized by writhing and twisting.Automatic movements, such as sucking and tooth-grinding, and atheroid movements of the limbs, are not uncommon. — 1940 •Shaped like an ear of grain.It has been shown by Hyde, however, that these shells are spire-bearing with a brachidium of atheroid type. — 1914 formsmore atheroid · most atheroid