cosh

n. 大頭棍、內裝金屬的橡皮棒、鉛棒、短棍

vt. 用短棍打、用棍棒打

學術名詞

• 雙曲餘弦：電機工程、電力工程

英文釋義

1. a piece of metal covered by leather with a flexible handle; used for hitting people
2. hit with a cosh, usually on the head