/ Dictionary / Index G geoduck: Meaning and Definition of Find definitions for: ge•o•duck Pronunciation: (g'ē-duk"), [key] — n. a very large edible clam, Panope generosa, of the NW coast of the U.S. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: geoduck (Thesaurus) geodome geodynamics Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language