n. . A dovecote; a pigeon-house. Also columbary.n. In Roman antiquity, a place of sepulture for the ashes of the dead, consisting of arched and square-headed recesses formed in walls, in which the cinerary urns were deposited: so named from the resemblance between these recesses and those formed in a dove-cote for the doves to build their nests in.n. In architecture, a hole left in a wall for the insertion of the end of a beam. Also called putlog-hole.n. Eccles., the columba or dove-shaped pyx. See columba, 3.