1. [n]  any igniter by which an explosive charge is ignited
2. [n]  electrical device that can interrupt the flow of electrical current when it is overloaded
3. [v]  mix together different elements; "The colors blend well"; "fuse the clutter of detail into a rich narrative"--A. Schlesinger
4. [v]  make liquid or plastic by heating; "The storm fused the electric mains"
5. [v]  become plastic or fluid or liquefied from heat; "The substances fused at a very high temperature"
6. [v]  equip with a fuse; provide with a fuse

Fuse
Fuse

more details ...

1. \Fuse\, v. t. [imp. & p. p. {Fused} (fuzd); p. pr. & vb. n.
   {Fusing}.] [L. fusus, p. p. of fundere to pour, melt, cast.
   See {Foundo} to cast, and cf. Futile.]
   1. To liquefy by heat; to render fiuid; to dissolve; to melt.
   2. To unite or blend, as if melted together.
            Whose fancy fuses old and new.        --Tennyson.
   

2. \Fuse\, v. i.
   1. To be reduced from a solid to a Quid state by heat; to be
      melted; to melt.
   2. To be blended, as if melted together.
   {Fusing point}, the degree of temperature at which a
      substance melts; the point of fusion.
   

3. \Fuse\, n. [For fusee, fusil. See 2d {Fusil}.] (Gunnery,
   Mining, etc.)
   A tube or casing filled with combustible matter, by means of
   which a charge of powder is ignited, as in blasting; --
   called also {fuzee}. See {Fuze}.
   {Fuse hole}, the hole in a shell prepared for the reception
      of the fuse. --Farrow.
   

4. \Fuse\, or Fuze \Fuze\, n. (Elec.)
   A wire, bar, or strip of fusible metal inserted for safety in
   an electric circuit. When the current increases beyond a
   certain safe strength, the metal melts, interrupting the
   circuit and thereby preventing possibility of damage.
   

5. \Fuse\, or Fuze plug \Fuze, plug\ .
   1. (Ordnance) 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.
   

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