◙ plural noun 1. large ruminant animals with horns and cloven hoofs, domesticated for meat or milk, or as beasts of burden; cows and oxen • 牛 2. Bos taurus (including the zebu, B. indicus), family Bovidae; descended from the extinct aurochs • 拉丁名Bos taurus（包括瘤牛），牛科；为已绝灭的古代欧洲野牛后裔 3. similar animals of a group related to domestic cattle, including yak, bison, and buffaloes • 家牛（包括牦牛、犎牛及水牛） 4. Tribe Bovini, family Bovidae (the cattle family): four genera, in particular Bos. The cattle family also includes the sheep, goats, goat-antelopes, and antelopes • 拉丁名Tribe Bovini，牛科： 4属，尤指牛属。牛科也包括绵羊、山羊、斑羚和羚羊
【语源】
1. Middle English (also denoting personal property or wealth): from Anglo-Norman French catel, variant of Old French chatel (seechattel)