资料来源 : pyDict

一种鲸鱼

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Rorqual \Ror"qual\, n. [Norw. rorqualus a whale with folds.]
   (Zo["o]l.)
   A very large North Atlantic whalebone whale ({Physalus
   antiquorum}, or {Bal[ae]noptera 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.

资料来源 : WordNet®

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}]