ŏpercŭlum, i, n. [operio],
a cover , covering , lid (class.): quibus operibantur operimenta et pallia opercula dixerunt, Varr. L. L. 5, § 167 Müll.: aspera arteria tegitur quasi quodam operculo, Cic. N. D. 2, 54, 136; Col. 8, 8, 7: sorba in urceolos picatos adicito et opercula picata imponito, id. 12, 16, 4: ambulatorium, a movable cover , Plin. 21, 14, 47, § 80.—Prov.: patellae dignum operculum, like to like , Hier. Ep. 1, 7; cf. id. ib. 127 (16), n. 9.—Of the covering of walls, wainscoting , panel-work : OPERCVLA ABIEGNIA IMPONITO, Lex Puteol. Grut. 207, col. 2.