/ Dictionary / Index P pyroelectricity: Meaning and Definition of Find definitions for: py•ro•e•lec•tric•i•ty Pronunciation: (pī"rō-i-lek-tris'i-tē, -ē"lek-), [key] — n. electrification or electrical polarity produced in certain crystals by temperature changes. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: pyroelectricity (Thesaurus) pyroelectric pyrogallate Related Content Daily Word Quiz: fervor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language