柯林斯詞典catheter /?k?θ?t?/ (catheters) 1. N-COUNT A catheter is a tube which is used to introduce liquids into a human body or to withdraw liquids from it. 導(dǎo)琯[毉學(xué)] 返回 catheter劍橋詞典a long , very thin tube used to take liquids out of the body 導(dǎo)（液）琯 返回 catheter