American Heritage® Dictionary of the English Language, Fourth Edition
- n. See blue whale.
Century Dictionary and Cyclopedia
- n. The sulphur-bellied whale of the Pacific, a rorqual, Balænoptera (or Sibbaldius) sulphurea. Also sulphur-whale.
- n. alternative spelling of sulfur-bottom.
GNU Webster's 1913
- n. (Zoöl.) A very large whalebone whale of the genus Sibbaldius, having a yellowish belly; especially, S. sulfureus of the North Pacific, and S. borealis of the North Atlantic; -- called also
“The sulphur-bottom whale (_B. sulfureus_) is known by its yellowish belly, and with Sibbald's whale”
“The sulphur-bottom, river St. Lawrence, ninety foot long; they are but seldom killed, as being extremely swift.”
“Now you take the sulphur-bottom whale, "Vexley hastily launched off again.”
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