ror·qual /ˈrɔrkwəl, ˌkwɔl/
一種鯨魚
Ror·qual n. Zool. A very large North Atlantic whalebone whale (Physalus antiquorum, or Balaenoptera physalus). It has a dorsal fin, and strong longitudinal folds on the throat and belly. Called also razorback.
Note: ☞ It is one of the largest of the whales, somethimes becoming nearly one hundred feet long, but it is more slender than the right whales, and is noted for its swiftness. The name is sometimes applied to other related species of finback whales.
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rorqual
n : any of several baleen whales of the family Balaenopteridae
having longitudinal grooves on the throat and a small
pointed dorsal fin [syn: razorback]