finback

POS

Noun

HYPHEN

fin=back

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WORDNET DICTIONARY

Noun finback has 1 sense

finback(n = noun.animal) balaenoptera physalus, common rorqual, fin whale, finback whale - large flat-headed whalebone whale having deep furrows along the throat; of Atlantic and Pacific;

is a kind of razorback, rorqual

is a member of balaenoptera, genus balaenoptera

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CIDE DICTIONARY

finback, n.

Any whale of the genera Sibbaldius, Balænoptera, and allied genera, of the family Balænopteridæ, characterized by a prominent fin on the back. The common finbacks of the New England coast are Sibbaldius tectirostris and S. tuberosus. [1913 Webster]