canonical

Present in a canon, religious or otherwise.

The Gospel of Luke is a canonical New Testament book.

In a word, they were made uſe of by the immediate ſucceſſors of the Apoſtles, and many of them read in the Public Aſſemblies of Chriſtians, as Canonical Scripture, without the leaſt mark of Diſtinction, in point of Autority[…]

According to recognised or orthodox rules.

The men played golf in the most canonical way, with no local rules.

While bills are being brought into the House of Commons to regulate every thing, from the sweeps crying "sweep," to "emancipation, vote by ballot, and free trade," is there no county member whose "time and talents" are devoted to "domestic policy," who will bring in a bill "for the better regulation of the marriage ceremony," and put the canonical hours later in the day?

Stated or used in the most basic and straightforwardly applicable manner.

the reduction of a linear substitution to its canonical form

Prototypical.

In conformity with canon law.