| 单词 | cetacean |
| 释义 | cetacean —cetaceous, adj. /si tay"sheuhn/, adj. 1. belonging to the Cetacea, an order of aquatic, chiefly marine mammals, including the whales and dolphins. n. 2. a cetacean mammal. [1830-40; < NL Cetace(a) name of the order (see CET-, -ACEA) + -AN] |
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