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Noun: sunglasses  'sún,glã-siz
  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]
Noun: sunglass  'sun,glãs
  1. A convex lens that focuses the rays of the sun; used to start a fire

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

Encyclopedia: Sunglasses

Sunglass