Hypertext Webster Gateway: "pustule"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Pustule \Pus"tule\ (?; 135), n. [L. pustula, and pusula: cf. F.
pustule.] (Med.)
A vesicle or an elevation of the cuticle with an inflamed
base, containing pus.
{Malignant pustule}. See under {Malignant}.
From WordNet (r) 1.7 (wn)
pustule
n : a small inflamed elevation of skin containing pus
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