Processional
processional
(Latin: procedere, to go forward)
a book containing the services in a religious procession
a hymn sung during a religious service, especially when the clergy and choir enter the church
path of a religious procession
books pertaining to local churches (medieval)
New Catholic Dictionary
Fuente: New Catholic Dictionary
Processional
(Lat. processionale), the servicebook which contains the prayers, hymns, and general ceremonial of the different processions. Many ancient books of this class have been preserved. The processional approved for common use is that of Rome, of which many editions have been published.