ヒゲゼンマイ

ひ

げ

ぜ

ん

ま

い

Meanings

1

balance spring; hairspring

usually written using kana alone

A very thin spiral spring used in mechanical watches and clocks to regulate the oscillation of the balance wheel.

が

使つか

わ

れ

て

いる

。

A hairspring is used in the heart of a mechanical watch.

ヒゲゼンマイが切きれると、時計とけいは動うごかなくなる。

If the hairspring breaks, the watch stops working.