ruby hole
now historical
noun
A small hole cut in a piece of ruby, especially in a watch escapement.
Origin
Mid 18th century.
- setaceous
- setal
- set-aside
- set at naught
- setback
- se-tenant
- seter
- set fire to
- set foot on (or in)
- set forth (or forward)
- seth
- Seth, Vikram
- SETI
- set in
- set in motion
- set list
- set menu
- set-net
- set-netter
- set off
- seton
- set one's cap at (or for)
- set oneself up as
- set one's face against
- set one's heart (or hopes) on