/ Dictionary / Index P pilot whale: Meaning and Definition of Find definitions for: pi'lot whale" Pronunciation: [key] a small, common whale, Globicephala sieboldii, of tropical and temperate seas, having a bulbous head. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. pilotweed pilous Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language