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valva, ae, f., the leaf of a door, a folding-door; sing. rare, Pompon. ap. Non. 19, 23; Petr. 96; Sen. Herc. Fur. 999.
Mostly plur.: valvae, ārum, the leaves, folds, or valves of a door, a folding-door, Cic. Div. 1, 34, 74; id. Verr. 2, 4, 43, § 94; 2, 4, 56, § 124; Caes. B. C. 3, 105; Juv. 4, 63; Prop. 4 (5), 8, 51; Ov. M. 1, 172; 2, 4; Hor. S. 2, 6, 112; Plin. Ep. 2, 17, 5; 5, 6, 19; 5, 6, 38.