a. [ F. fusible. See Fuse, v. t. ] CapabIe of being melted or liquefied. [ 1913 Webster ]
Fusible metal, any alloy of different metals capable of being easily fused, especially an alloy of five parts of bismuth, three of lead, and two of tin, which melts at a temperature below that of boiling water. Ure. -- Fusible plug (Steam Boiler), a piece of easily fusible alloy, placed in one of the sheets and intended to melt and blow off the steam in case of low water. [ 1913 Webster ]