Pronunciation: (pru-sesh'u-nl),[key] —adj. 1. of, pertaining to, or characteristic of a procession.
2. of the nature of a procession; moving in an orderly or regular succession, sequence, or the like.
3. of a style, design, etc., customarily used in processions: processional regalia. 4. sung or played during a procession, as a hymn, march, etc.
—n. 1. a piece of music, as a hymn or slow march, suitable for accompanying a procession.
2. a book containing hymns, litanies, etc., for use in religious processions.