locking stone
noun
1 Clockmaking and Watchmaking a locking pallet in the form of a ruby or other jewel.
2= keystone.
Origin
Mid 19th century.
- wellington
- Wellington, 1st Duke of
- Wellington apple
- wellington boot
- wellingtonia
- Wellingtonian
- well-inhabited
- wellink
- well-instituted
- well-instructed
- well-integrated
- well-intended
- well intentioned
- well-invented
- wellish
- wellish-off
- well-joined
- well-jointed
- well judged
- well-judging
- well-justified
- well-kempt
- well-kent
- well kept
- well kerb