| 单词 | rorqual |
| 释义 | rorqual n. any of various whales of the family Balaenopteridae esp. Balaenoptera musculus, having a dorsal fin. Also called fin-back, fin whale. Etymology: F f. Norw. r{Yacute}yrkval f. OIcel. reythr the specific name + hvalr WHALE(1) |
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