sei whale (redirected from Rudolphi's rorqual)

sei whale

n.

A rorqual (Balaenoptera borealis) that is blue-black above and white below, that grows up to about 55 feet (17 meters) in length, and that is found in all the oceans, with the greatest number living in Antarctic waters.

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[Partial translation of Norwegian seihval; see sei.]

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sei whale [seɪ]

n

(Life Sciences & Allied Applications / Animals) a rorqual, Balaenoptera borealis

[from Norwegian seihval, from sei coalfish (see saithe) + hval whale: so called because it follows coalfish in search of food]

Thesaurus

Noun

1.

sei whale - similar to but smaller than the finback whale Balaenoptera borealis rorqual, razorback - any of several baleen whales of the family Balaenopteridae having longitudinal grooves on the throat and a small pointed dorsal fin Balaenoptera, genus Balaenoptera - type genus of the Balaenopteridae