fusee

From French fusée, ultimately from Latin fūsus (“spindle”).

fusee (plural fusees)

1. A conical, grooved pulley in early clocks.
2. A large friction match.
   • 1914, "Saki", ‘The Dreamer’, Beasts and Superbeasts, Penguin 2000 (Complete Short Stories), page 322:

     A comfortable hammock on a warm afternoon would appeal to his indolent tastes, and then, when he was getting drowsy, a lighted fusee thrown into the nest would bring the wasps out in an indignant mass, and they would soon find a ‘home away from home’ on Waldo's fat body.

3. A fuse for an explosive.
4. (US) A colored flare used as a warning on the railroad.
5. A fusil, or flintlock musket.

Uncertain.

fusee (plural fusees)

1. The track of a buck.

   (Can we find and add a quotation of Ainsworth to this entry?)

fuse +‎ -ee.

fusee (plural fusees)

1. One who, or that which, fuses or is fused; an individual component of a fusion.
   • 2002, Philosophical Topics, volume 30, issue 1, page 276:

     This is the fusion of two people who are neurally and biologically (and so, psychologically) identical. Setting aside issues about intensional content, when these differ, such a fusion would clearly produce someone who is exactly like what either of the fusees would have been like had the fusion not occurred.