canonicus, a, um, adj., = κανονικός, according to rule or measure. In music: ratio, the theory of harmony, Vitr. 1, 1; 5, 3; cf. Gell. 16, 18, 5.

— In astronomy: defectiones solis, as following at regular intervals, Aug. Civ. Dei, 3, 15.

—Subst.: cano-nici, ōrum, m., theorists, Plin. 2, 17, 14, § 73; and canonica, ōrum, n., = canonica ratio, theory: luminum, Plin. Ep. 1, 2, 12.

— Of or pertaining to an annual tribute: pensitationes, Cod. Just. 12, 62, 2: equi, ib. 11, 17, 3: vestes, ib. 11, 9, 1.

— Eccl. Lat., of or belonging to the canon, canonical: libri, Aug. Civ. Dei, 18, 36; id. Doctr. Christ. 2, 8.

— In later eccl. Lat. subst.: canoni-cus, i, m., one of the rule or discipline, i. e. clericus, a clergyman, as distinguished from laicus, one of the people, and monachus, a recluse, Antioch. Can. 2, 6, 11; hence the mod. canon or prebendary.

—Adv.: ca-nonicē, according to Church discipline, regularly, Cassiod. Hist. Eccl. 9, 14.