Webster’s Revised Unabridged Dictionary · 1913
Sunglass
Sun′glass′ (sŭn′glȧs′), n.; pl. Sunglasses. A convex lens of glass for producing heat by converging the sun's rays into a focus. "Lighting a cigar with a sunglass." Hawthorne.
Webster’s Revised Unabridged Dictionary · 1913
Sun′glass′ (sŭn′glȧs′), n.; pl. Sunglasses. A convex lens of glass for producing heat by converging the sun's rays into a focus. "Lighting a cigar with a sunglass." Hawthorne.