/ Dictionary / Index A apse: Meaning and Definition of Find definitions for: apse Pronunciation: (aps), [key] — n. a semicircular or polygonal termination or recess in a building, usually vaulted and used esp. at the end of a choir in a church. See diag. under an apsis. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: apse (Thesaurus) Apsaras apse line Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language