\Fu"sil\, a. [L. fusilis molten, fluid, fr. fundere,
fusum, to pour, cast. See {Fuse}, v. t.]
1. Capable of being melted or rendered fluid by heat;
   fusible. [R.] ``A kind of fusil marble'' --Woodward.
2. Running or flowing, as a liquid. [R.] ``A fusil sea.''
   --J. Philips.
3. Formed by melting and pouring into a mold; cast; founded.
   [Obs.] --Milton.

\Fu"sil\, n. [F. fusil, LL. fosile a steel for kindling
fire, from L. focus hearth, fireplace, in LLL. fire. See
{Focus}, and cf. {Fusee} a firelock.]
A light kind of flintlock musket, formerly in use.

\Fu"sil\, n. [See 3d {Fusee}.] (Her.)
A bearing of a rhomboidal figure; -- named from its shape,
which resembles that of a spindle.
Note: It differs from a lozenge in being longer in proportion
      to its width.