FUSELAGE
Fu"se*lage, n. (Aëronautics)
Defn: An elongated body or frame of an aëroplane or flying machine; sometimes, erroneously, any kind of frame or body. Many aëroplanes have no fuselage, properly so called.
FUSE PLUG; FUZE PLUG
Fuse, or Fuze, plug .
1. (Ordnance)
Defn: A plug fitted to the fuse hole of a shell to hold the fuse.
2. A fusible plug that screws into a receptacle, used as a fuse in electric wiring.
FUSIBILITY
Fu"si*bil"i*ty, n. Etym: [Cf. F. fusibilité.]
Defn: The quality of being fusible.
FUSIBLE
Fu"si*ble, a. Etym: [F. fusible. See Fuse, v. t.]
Defn: CapabIe of being melted or liquefied. 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.