Synonyms for Black whale:

n.

animal (noun)
common blackfish, Globicephala Melaena, blackfish, pilot whale.
black whale (noun)
cachalot, sperm whale, blackfish, Physeter Catodon, common blackfish, Globicephala Melaena, pilot whale.

Other synonyms:

Globicephala melaena
Globicephala Melaena.
Physeter catodon
Physeter Catodon.