1. appearing in a biblical canon

- a canonical book of the Christian New Testament

Similar word(s): canonical

2. of or relating to or required by canon law

Similar word(s): canonical

3. reduced to the simplest and most significant form possible without loss of generality

- a canonical syllable pattern

Similar word(s): standard, basic, canonical

4. conforming to orthodox or recognized rules

- the drinking of cocktails was as canonical a rite as the mixing

Similar word(s): orthodox, canonical, sanctioned