Fū'run-cle, n.

(fū'runk-l), n. [Lat. furunculus, a petty thief, a burning sore, boil, diminutive of fur, thief; Fr. furoncle, froncle, It. furunculo.] (Med.) A superficial, inflammatory tumor, deep red, hard, circumscribed, acutely tender to the touch, suppurating with a central core; a boil.