Risso's Dolphin Definition

A marine mammal (Grampus griseus) having a bulbous head, a tall curved dorsal fin, and a gray body with white streaks or scars.
American Heritage

Origin of Risso's Dolphin

  • After Antoine Risso (1777–1845), French naturalist born in Nice

    From American Heritage Dictionary of the English Language, 5th Edition

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