Definition of sei whale in English:

sei whale

Syllabification: sei whale
Pronunciation: /ˈsā ˌ(h)wāl
 
/

noun

A small rorqual with dark steely-gray skin and white grooves on the belly.
  • Balaenoptera borealis, family Balaenopteridae
More example sentences
  • Fairly secretive visitors among the larger rorquals are the fin whale and its slightly smaller cousin, the sei whale.
  • Stone said she was dismayed by news suggesting the Japanese government not only wants to increase its take of minke whales, but that Japan now intends to expand its operations to hunt the endangered sei whale in the North Pacific.
  • Likewise, the lungs of large whales including fin whales and sei whales and pilot whales show evidence of progressive alveolar collapse in response to increased hydrostatic pressure.

Origin

early 20th century: from Norwegian sejhval.

Definition of sei whale in:

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