adj. & n.
--adj.
1. with or concerning ritual or ceremony.
2 formal (a ceremonial bow).
--n.
1. a system of rites etc. to be used esp. at a formal or religious occasion.
2 the formalities or behaviour proper to any occasion (with all due ceremonial).
3 RC Ch. a book containing an order of ritual.
Derivatives:
ceremonialism n. ceremonialist n. ceremonially adv.
Etymology: LL caerimonialis (as CEREMONY)