walrus 
either of two large northern marine mammals having ivory tusks and tough hide over thick blubber (Freq. 1) • Syn: seahorse, sea horse • Hypernyms: pinniped mammal, pinniped, pinnatiped • Hyponyms: Atlantic walrus, Odobenus rosmarus, Pacific walrus, Odobenus divergens • Member Holonyms: Odobenus, genus Odobenus
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