- an inflammatory disease of the sebaceous glands, characterized by comedones and pimples, especially on the face, back, and chest, and, in severe cases, by cysts and nodules resulting in scarring.
- Also called: acne vulgaris a chronic skin disease common in adolescence, involving inflammation of the sebaceous glands and characterized by pustules on the face, neck, and upper trunkSee also rosacea
1813, from Modern Latin, from aknas, a 6c. Latin clerical misreading of Greek akmas, accusative plural of akme “point” (see acme). The “pointed” pimples are the source of the medical use.
- An inflammatory eruption affecting the face, upper back, and chest, consisting of blackheads, cysts, papules, and pustules, and occurring primarily during puberty and adolescence.
- An inflammatory disease of the sebaceous glands and hair follicles of the skin that is marked by the eruption of pimples or pustules, especially on the face.
- An inflammatory disease of the skin in which the sebaceous glands become clogged and infected, often causing the formation of pimples, especially on the face. It is most common during adolescence, but also occurs in infants and adults.