Ritual /(?)/

Rit·u·al

Ritual

a.
  1. Of or pertaining to rites or ritual; as, ritual service or sacrifices; the ritual law.

Ritual

n.
  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.