Pertaining to or resembling a musical canon.
of, relating to, or required by canon law; of or appearing in the biblical canon; conforming to orthodox rules, as of procedure
adj. In computer science, pertaining to an expression that conforms to a specific set of rules.
Conforming to a general or accepted rule.
conforming to orthodox or recognized rules; "the drinking of cocktails was as canonical a rite as the mixing"- Sinclair Lewis
Conforming to recognized rules or church dogma.
Is to abide by the rules. In computer science and mathamatics this often refers to the way a formula or algorithm is written. When written in a standard way a function is said to be of canonical order.
Of or pertaining to the canons, or laws, of the Catholic Church.
Canonical is an adjective derived from . Canon comes from the Arabic word "Qanuun" which essentially means "rule", "law", "standard", and has come to mean "generally accepted" or "authoritatively correct."