/ Dictionary / Index P Piagetian: Meaning and Definition of Find definitions for: Pi•a•get•ian Pronunciation: (pē"u-zhā'un, pyä-), [key] — adj. of or pertaining to the theories developed by Jean Piaget. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: piagetian (Thesaurus) Piaget pial 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