Source : Webster's Revised Unabridged Dictionary (1913)

Fusee \Fu*see"\, n.
   1. (Railroads) A signal used principally for the protection
      of trains, consisting of a tube filled with a composition
      which burns with a bright colored light for a definite
      time.

Fusee \Fu*see"\, n. [See 2d {Fusil}, and cf. {Fuse}, n.]
   1. A flintlock gun. See 2d {Fusil}. [Obs.]

   2. A fuse. See {Fuse}, n.

   3. A kind of match for lighting a pipe or cigar.

Fusee \Fu*see"\, n. [Etymol. uncertain.]
   The track of a buck. --Ainsworth.

Fusee \Fu*see"\, n. [F. fus['e]e a spindleful, fusee, LL.
   fusata, fr. fusare to use a spindle, L. fusus spindle.]
   (a) The cone or conical wheel of a watch or clock, designed
       to equalize the power of the mainspring by having the
       chain from the barrel which contains the spring wind in a
       spiral groove on the surface of the cone in such a manner
       that the diameter of the cone at the point where the
       chain acts may correspond with the degree of tension of
       the spring.
   (b) A similar wheel used in other machinery.

Source : WordNet®

fusee
     n 1: a spirally grooved spindle in a clock that counteracts the
          diminishing power of the uncoiling mainspring [syn: {fusee
          drive}]
     2: a colored flare used as a warning signal by trucks and
        trains [syn: {fuzee}]
     3: a friction match with a large head that will stay alight in
        the wind [syn: {fuzee}]
     4: any igniter that is used to initiate the burning of a
        propellant [syn: {fuse}, {fuze}, {fuzee}, {primer}, {priming}]