1. (plural) spectacles that are darkened or polarized to protect the eyes from the glare of the sun
   "he was wearing a pair of mirrored sunglasses";
   - dark glasses, shades [informal], sunnies [Austral, NZ, informal]

1. A convex lens that focuses the rays of the sun; used to start a fire
   "The survivalist used a sunglass to ignite kindling"

Type of: converging lens, convex lens, eyeglasses [N. Amer], glasses, specs, spectacles

Encyclopedia: Sunglasses