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.
- radiesthesic
- radiesthesist
- radiesthetic
- radiesthetically
- radiesthetist
- radif
- radiferous
- radii
- radio
- radio-
- radioactinium
- radioactivate
- radioactivation
- radioactivation analysis
- radioactive
- radioactive constant
- radioactive equilibrium
- radioactive indicator
- radioactively
- radioactive series
- radioactive tracer
- radioactive waste
- radioactivity
- radio alarm
- radio alarm clock