clapper

中文： 钟舌、拍手者、惊鸟响器

1. One who claps; a person who applauds by clapping the hands.
2. An object so suspended inside a bell that it may hit the bell and cause it to ring; a clanger or tongue.
3. A wooden mechanical device used as a scarecrow; bird-scaring rattle, a wind-rattle or a wind-clapper.
4. A clapstick (musical instrument).
5. A pounding block.
6. The chattering damsel of a mill.
7. A slapshot
8. The hinged part of a clapperboard, used to synchronise images and soundtrack, or the clapperboard itself.

复数 clappers