noun
metal ring; link
General term for a metal ring or link, such as a chain link or a ring-shaped fitting. Often used in technical or craft contexts.
この鎖の鐶が一つ外れている。
One link of this chain has come off.
noun
kettle ring; tea ceremony ring
Specifically a ring made of twisted metal wire, placed inside a kettle so it can be lifted during the tea ceremony. Highly specialized term.
茶道では、釜の中に鐶を入れて持ち上げる。
In the tea ceremony, a kettle ring is placed inside the kettle to lift it.