/ Dictionary / Index G greater shearwater: Meaning and Definition of Find definitions for: great'er shear'water Pronunciation: [key] a sooty-brown and white shearwater, Puffinus gravis, of eastern coasts of the Western Hemisphere. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. greater scaup greater siren Related Content Daily Word Quiz: divulge Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language