- a large-mouthed arctic whale, Balaena mysticetus, that has become rare through overfishing but is now a protected species
WordReference Random House Unabridged Dictionary of American English © 2019
- Mammalsa whalebone whale, Balaena mysticetus, of northern seas, having an enormous head and mouth: an endangered species. See illus. under whale. Also called Greenland whale.
- bow2 + head 1885–90