Note: Do not rely on this information. It is very old.
Canon
Canon. 1. Those books of Scripture universally recognised as genuine and inspired, as distinguished from those which are apocryphal or disputed. 2. The name of a church dignitary connected with a cathedral; formerly canons were regular and secular, the latter living a non-monastic life, the former a strictly monastic. The regular canons no longer exist in the Church of England. Together with the dean the canons form the chapter of a cathedral. Minor canons and honorary canons are not included in the chapter. 3. A kind of musical composition, in which the voices take up, one after another, exactly the same melody, either at the same pitch or at a fixed interval.