S borealis — Sulphur bottom Sul phur bot tom, n. (Zo[ o]l.) 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 {sulphur whale} … The Collaborative International Dictionary of English
S sulfureus — Sulphur bottom Sul phur bot tom, n. (Zo[ o]l.) 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 {sulphur whale} … The Collaborative International Dictionary of English
sulphur whale — Sulphur bottom Sul phur bot tom, n. (Zo[ o]l.) 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 {sulphur whale} … The Collaborative International Dictionary of English
Sulphur-bottom — Sul phur bot tom, n. (Zo[ o]l.) 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 {sulphur whale}. [1913… … The Collaborative International Dictionary of English