/ Dictionary / Index P Piaget: Meaning and Definition of Find definitions for: Pia•get Pronunciation: (pē"u-zhā', py"ä- Fr. pya-zhe'), [key] 1896–1980, Swiss psychologist: studied cognitive development of children. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: piaget (Thesaurus) piaffe Piagetian Related Content Daily Word Quiz: abscond Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language