noun
roulette
A small toothed wheel used to mark or perforate a surface.
The printer rolls a roulette across the plate to mark it.
Etymology
French roulette means a little wheel. The marking tool preserves that literal meaning for its small toothed rotating wheel.
More examples
- Several roulettes lay beside the engraving tools.
- The roulette produced a dotted line.
- She selected a finely toothed roulette.
Forms
roulette · roulettes