(adjective) : ŏpācus, a, um
* In the shade, shaded, shady (class.): opaca vocantur umbrosa,Fest. p. 185 Müll.: ripa,Cic. Leg. 1, 5, 15: frigus,shady coolness, cool shade,Verg. E. 1, 53: vallis,Hor. Ep. 1, 16, 5.—Comp.: locus umbrā opacior,Plin. Ep. 5, 6, 25.—Sup.: opacissima nemorum pascua,Col. 6, 22.—Neutr. absol.: colores, qui in opaco clarius micant,in the shade,Plin. 10, 20, 22, § 43.—So in plur. with gen.: per opaca locorum,through shady places,Verg. A. 2, 725; 6, 633.
* Transf.
* That gives or casts a shade, shady (poet.): nemus,Verg. A. 8, 107: ilex,id. ib. 11, 851: herba,Ov. M. 3, 438.
* Bushy, thick: barba,Cat. 37, 19.

s. TLL