rituala.[L. ritualis, fr. ritus a rite: cf. F. rituel.] Of or pertaining to rites or ritual; as, ritual service or sacrifices; the ritual law.()n.[Cf. F. rituel.]1. A prescribed form of performing divine service in a particular church or communion; as, the Jewish ritual.()2. Hence, the code of ceremonies observed by an organization; as, the ritual of the freemasons.()3. A book containing the rites to be observed.()