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pilot whale

noun
  1. a small, common whale, Globicephala sieboldii, of tropical and temperate seas, having a bulbous head.

Origin of pilot whale

First recorded in 1865–70
Also called pothead whale.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for pilot whale

pilot whale

noun
  1. any of several black toothed whales of the genus Globicephala, such as G. melaena, that occur in all seas except polar seas: family DelphinidaeAlso called: black whale, blackfish
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012