Obs. rare. [a. OF. froncle, ad. L. fūrunculus FURUNCLE.] A furuncle or boil.
1543. Traheron, Vigo’s Chirurg. (1586), 53.
1547. Boorde, Brev. Health, lxxiii. 26 b. A froncle is a lytle impostume ingendred of a gross bloud.
