|aknēˌvəlˈga(a)rə̇s noun
( plural ac·nae vulgar·es -(ˌ)nēˌvəlˈga(a)(ˌ)rēz)
Etymology: New Latin, literally, common acne
: a chronic acne involving mainly the face, chest, and shoulders common in adolescent humans and various domestic animals and characterized by the intermittent formation of discrete papular or pustular lesions often resulting in considerable scarring — compare acne rosacea