fusee

• Nom avec plusieurs sens : fuseau cannelé d'un mécanisme d'horlogerie ; fusée éclairante colorée de signalisation utilisée par les véhicules ; allumette à tête volumineuse qui reste allumée au vent ; ou inflammateur servant à initier la combustion d'un combustible.

A noun with multiple meanings: a grooved spindle in a clock mechanism; a colored warning flare used by vehicles; a large-headed friction match that remains lit in wind; or an igniter used to initiate propellant burning.

1. Clock componentC2formal

   A spirally grooved spindle in a clock that counteracts the diminishing power of the uncoiling mainspring, ensuring consistent timekeeping.

   Fusée (composant d'horlogerie)

   • The antique clock's fusee was carefully cleaned and oiled.
   • Watchmakers often repair the fusee mechanism in vintage timepieces.
   • The fusee helps maintain even torque as the mainspring unwinds.

2. B2formal

   A colored flare used as a warning signal by trucks and trains to indicate danger or an emergency.

   Fusée de signalisation

   • The truck driver placed a fusee on the road to warn other drivers.
   • Railroad workers use a fusee to signal an approaching train.
   • The red fusee burned brightly in the dark night.

   Synonymesflare

3. B2informal

   A friction match with a large head that will stay alight in the wind, often used for outdoor or emergency purposes.

   Allumette tempête

   • He lit a fusee to start the campfire in the windy conditions.
   • The survival kit included a fusee for emergency lighting.
   • A fusee can be struck against any rough surface to ignite.

4. Igniter for propellantC1formaltechnical

   Any igniter that is used to initiate the burning of a propellant, such as in rockets or fireworks.

   Allumeur de propergol

   • The engineer installed a fusee to ignite the rocket's fuel.
   • Fireworks displays rely on a fusee to start the chain reaction.
   • The fusee must be carefully positioned to ensure proper ignition.

   Synonymesfuseigniterprimersquib