canon (of RC Mass)

The eucharistic prayer or prayer of consecration in the Roman Catholic Mass, so called from the rule that established its unchanging form.

Uses of "canon" related to the primary meaning above include:

In Christian theological or ecclesiastical contexts: Canon law, all legislation adopted by an ecumenical council, most notably found in the Roman Catholic Church, the Eastern Orthodox Churches and the Anglican Communion of churches Canon law (Catholic Church), the canon law of the Roman Catholic Church specifically A specific body of such laws on a given subject, e.g. Canon of the Mass, the name in the Roman Missal for the prayer of consecration in the mass another term for the altar cards containing certain eucharistic prayers In literature: Canon, a fixed collection of texts, such as: Biblical canon Western canon Greek canon the Hindu canon of Shruti texts Tripitaka, the Buddhist canon the Taoist canon the Confucian canon of Chinese classic texts Canon (fiction), a body of works that are considered to be "genuine" or "official" within a certain fictional universe. Johann Pachelbel's Canon in D Major

Other uses of "canon", with entirely separate origins include:

qanún, a stringed instrument also spelled as canon Canon Inc., a Japanese corporation that specialises in imaging and optical products, named after Kuan Yin Canons was a country estate outside of London, named after the Duke of Chandos, where the current Canons Park is located cannon - the large tubular firearm (obsolete spelling, ultimately also cognate to cane)