gimmal

/gim-uhl, jim-uhl/US // ˈgɪm əl, ˈdʒɪm əl //

锦囊妙计,锦上添花,锦囊,锦绣

Definitions

n.名词 noun

1
- : any of various joints for transmitting motion between rotating parts, as in a timepiece.

In the 17th century we find numerous allusions to gimmal rings (variously spelt).
Nares, in his Glossary, observes that the name gimmal was preserved to rings made triple, or even more complimentary.
Such rings were known as Gemel or Gimmal rings, the word being derived from the Latin gemellus, twins.