(mathematics, computing) A standard or normal presentation of a mathematical entity or a text string, etc.

a sequence of DNA, RNA, or amino acids that reflects the most common choice of base or amino acid at each position.

(mathematics) A formalism for a physical theory which is based upon the canonical equations of Hamiltonian dynamics.

plural of canonical hour.

plural of canon law / Religious rules, regulations and edicts.

(uncountable) The law of the church, religious law. / (countable) A regulation in church law.

plural of canon bit

(obsolete, rare) The part of a bit which is put in a horse's mouth.

plural of canon bone

(anatomy) The shank bone, or great bone above the fetlock, in the fore and hind legs of the horse and allied animals, corresponding to the middle metacarpal or metatarsal bone of most mammals.