fusee

play
noun fu·see \ fyü-ˈzē \
Updated on: 11 Sep 2017

Definition of fusee

1 :a conical spirally grooved pulley in a timepiece from which a cord or chain unwinds onto a cylinder containing the mainspring and which by its increasing diameter compensates for the lessening power of the spring
2 :a red signal flare used especially for protecting stalled trains and trucks

Origin and Etymology of fusee

borrowed from French fusée "mass of thread around a spindle, explosive fuse, rocket, fusee in a timepiece," going back to Old French fusee "mass of thread around a spindle," from fus "spindle" (going back to Latin fūsus, of obscure origin) + -ee, suffix of association or containment, going back to Late Latin -āta (going back to Latin, feminine of -ātus 3-ate)
Note: In the later Middle Ages, French fusée designated a kind of rudimentary gunpowder-filled projectile, apparently resembling thread wound around a spindle—hence the later application to fuses, fireworks, etc.


Learn More about fusee


Seen and Heard

What made you want to look up fusee? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

agreeable, attractive, or delicious

Get Word of the Day daily email!

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!