an established or prescribed procedure for a religious or other rite.

a system or collection of religious or other rites.

observance of set forms in public worship.

a book of rites or ceremonies.

a book containing the offices to be used by priests in administering the sacraments and for visitation of the sick, burial of the dead, etc.

a prescribed or established rite, ceremony, proceeding, or service

the ritual of the dead.

prescribed, established, or ceremonial acts or features collectively, as in religious services.

any practice or pattern of behavior regularly performed in a set manner.

a prescribed code of behavior regulating social conduct, as that exemplified by the raising of one's hat or the shaking of hands in greeting.

Psychiatry . a specific act, as hand-washing, performed repetitively to a pathological degree, occurring as a common symptom of obsessive-compulsive neurosis.

of the nature of or practiced as a rite or ritual

a ritual dance.

of or pertaining to rites or ritual

ritual laws.

noun

act , ceremonial , communion , convention , custom , form , formality , habit , liturgy , observance , ordinance , practice , prescription , procedure , protocol , red tape * , rite , routine , sacrament , service , solemnity , stereotype , usagenotes:a rite is an established form of religious or otherwise solemn practice; a ritual is a prescribed form for carrying out the ceremonies associated with such a practice (both from latin ritus \'ceremony\') , office , ceremony , ceremonialism , consuetudinary , cult , obsequy , rite of passage

adjective

ceremonial , ceremonious , formal , liturgical , ritualistic