Fū'si-ble, a.

a. [Lat. fundere, fusum, to pour, to melt, Fr., Pr., & Sp. fusible, It. fusibile.] Capable of being melted or liquefied.

Fusible metal, an alloy of five parts of bismuth, three of lead, and two of tin, which melts at the heat of boiling water. Ure.—Fusible plug (Steam-engin.), a piece of easily fusible alloy, placed in the crown-sheet, and intended to melt and blow off the steam in case of low water.