recessional

adjective

1. of or relating to a recession of the clergy and choir after the service.
2. of or relating to a recess, as of a legislative body.

noun

3. a hymn or other piece of music played at the end of a service while the congregation is filing out.

adjective

1. of or relating to recession

noun

2. a hymn sung as the clergy and choir withdraw from the chancel at the conclusion of a church service

adj.

1858, from recession + -al (1). As a noun, “hymn sung while the clergy and choir are leaving church,” 1864, with -al (2).