\Mis`e*re"re\, n. [L., have mercy, fr. misereri to have
mercy, fr. miser. See {Miser}.]
1. (R. C. Ch.) The psalm usually appointed for penitential
   acts, being the 50th psalm in the Latin version. It
   commences with the word miserere.
2. A musical composition adapted to the 50th psalm.
         Where only the wind signs miserere.   --Lowell.
3. (Arch.) A small projecting boss or bracket, on the under
   side of the hinged seat of a church stall (see {Stall}).
   It was intended, the seat being turned up, to give some
   support to a worshiper when standing. Called also
   misericordia.
4. (Med.) Same as {Ileus}.