Noun has 2 senses

• black whale(n = noun.animal) blackfish, common blackfish, globicephala melaena, pilot whale - small dark-colored whale of the Atlantic coast of the United States; the largest male acts as pilot or leader for the school;



• black whale(n = noun.animal) cachalot, physeter catodon, sperm whale - large whale with a large cavity in the head containing spermaceti and oil; also a source of ambergris;