PROCESSIONAL (2)
Source: 567
Pro‐ces″sion‐al, n. [[F. processionnal, LL. processionale.]] 1. 1. (R. C. Ch.) A service book relating to ecclesiastical processions. J. Gregory.
2. 2. A hymn, or other selection, sung during a church procession; as, the processional was the 202d hymn.