pustule

Etymology

From Middle English pustule, from Old French pustule, from Latin pustula (“inflamed sore, blister”).

noun

  1. (dermatology) A small accumulation of pus in the epidermis or dermis.
  2. A pimple filled with pus.
    Pigmy pagodas sprouted like pustules. 1952, Norman Lewis, Golden Earth, Chapter 8
  3. Anything like a pustule, on plants or animals; a small blister.

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