柯林斯詞典crayfish /?kre??f??/ (crayfish) 1. N-COUNT A crayfish is a small shellfish with five pairs of legs which lives in rivers and streams. You can eat some types of crayfish. 淡水龍蝦 返回 crayfish劍橋詞典a small animal that lives in rivers and is similar to a lobster , or its flesh eaten as food 淡水鰲蝦（肉） 返回 crayfish