comedo Meaning, Definition & Usage

  1. noun a black-tipped plug clogging a pore of the skin
    blackhead.

WordNet

Com"e*do noun
Etymology
L., a glutton. See Comestible.
Wordforms
plural Comedones
Definitions
  1. (Med.) A small nodule or cystic tumor, common on the nose, etc., which on pressure allows the escape of a yellow wormlike mass of retained oily secretion, with a black head (dirt).

Webster 1913