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Definition of blue whale


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blue whale
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blue whale
Balaenoptera musculus
blue whale

NOUN:
A very large whalebone whale (Balaenoptera musculus) having a bluish-gray back, yellow underparts, and several ventral throat grooves. It is considered the largest living animal, sometimes reaching a length of 30.5 meters (100 feet). Also called sulphur-bottom.



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