sei whale

English Thesaurus

1. similar to but smaller than the finback whale (noun.animal)

hypernym	:	razorback, rorqual,
definition	:	any of several baleen whales of the family Balaenopteridae having longitudinal grooves on the throat and a small pointed dorsal fin (noun.animal)

member meronym	:	balaenoptera, genus balaenoptera,
definition	:	type genus of the Balaenopteridae (noun.animal)