/ Dictionary / Index P pismo clam: Meaning and Definition of Find definitions for: pis'mo clam' Pronunciation: (piz'mō), [key] a large edible clam, Tivela stultorum, of sandy shores of California and Mexico. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. pismire pisolite Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language