heart piece
Mechanics
noun
A heart cam in a stopwatch or clock used for returning a hand to zero.
Origin
Late 19th century.
- travail
- travel
- travel agency
- travel agent
- travelator
- travel bureau
- travel card
- traveler
- travelled
- traveller
- traveller's cheque
- traveller's joy
- traveller's tale
- travel light
- travelling
- travelling crane
- travelling people
- travelling salesman
- travelling salesman problem
- travelling scholarship
- travelling stock
- travelling stock reserve
- travelling stock route
- travelling wave
- travelogue