Final answer:
A comedone is the technical name for a blackhead, which is a non-inflammatory lesion that results from clogged hair follicles. It is a common feature of acne.
Step-by-step explanation:
A comedone refers to a blackhead, which is a type of non-inflammatory lesion that occurs when hair follicles become clogged with shed skin cells and sebum. Unlike whiteheads that are covered by skin, blackheads are not covered and have a dark appearance due to the oxidation of lipids in sebum when exposed to the air. They are a common feature of acne, a skin disorder caused by the infection of sebum-clogged pores by acne-causing bacteria.