from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A rorqual (Balaenoptera borealis) that is blue-black above and white below, that grows up to about 55 feet (17 meters) in length, and that is found in all the oceans, with the greatest number living in Antarctic waters.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. a whale of the rorqual family (Balaenoptera borealis)
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. similar to but smaller than the finback whale
Partial translation of Norwegian seihval; see sei.(American Heritage® Dictionary of the English Language, Fourth Edition)
Adapted from Norwegian seihval, with the second half translated. (Wiktionary)