I.before light, before day (class.; “only in prose): ex antelucano tempore,” Cic. Fam. 15, 4: “gutta roris antelucani,” Vulg. Sap. 11, 23: “industria,” Cic. Tusc. 4, 19, 44: “cenae,” which continue the whole night until daybreak, id. Cat. 2, 10: “lucubratio,” Col. 11, 2, 55: “spiritus, i. e. ventus,” Vitr. 1, 6; so, “aurae,” Plin. 18, 6, 7, § 2.—Hence, subst.: antĕlūcā-num , i, n., the dawn (eccl. Lat.): doctrinam quasi antelucanum illumino omnibus, I make to shine as the dawn, * Vulg. Eccli. 24, 44.
antĕ-lūcānus , a, um, adj. lux,