What is the meaning of Canonical?

Present in a canon, religious or otherwise.

According to recognised or orthodox rules.

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

Prototypical.

In conformity with canon law.

In the form of a canon.

Of or pertaining to an ecclesiastical chapter.

In canonical form.

Distinguished among entities of its kind, so that it can be picked out in a way that does not depend on any arbitrary choices.

Related to or part of the canon of a fictional universe.

The formal robes of a priest.

A URL presented in canonical form.

Source: wiktionary.org