/ Dictionary / Index B baptistery: Meaning and Definition of Find definitions for: bap•tis•ter•y Pronunciation: (bap'tu-strē, -tis-tu-rē), [key] — pl. -ter•ies. a building or a part of a church in which baptism is administered. (esp. in Baptist churches) a tank for administering baptism by immersion. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: baptistery (Thesaurus) Baptista baptistry Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language