| 单词 | blue whale |
| 释义 | blue whale a migratory baleen whale, Balaenoptera musculus, mostly of oceans and seas in the Southern Hemisphere, growing to a length of 100 ft. (30.5 m) and having a furrowed, slate-blue skin mottled with lighter spots, in some seas acquiring a yellowish coating of diatoms on the underside: the largest mammal ever known, it is now endangered. Also called sulfur-bottom. [1850-55] |
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