SUNGLASS

sunglass

(noun) a convex lens that focuses the rays of the sun; used to start a fire

Source: WordNet® 3.1


Etymology

Noun

sunglass (plural sunglasses)

singular of sunglasses; used chiefly in compounds

Noun

sunglass (plural sunglasses)

(archaic) A convex lens of glass for producing heat by converging the sun's rays into a focus.

Lighting a cigar with a sunglass — Hawthorne.

Source: Wiktionary


Sun"glass`, n.; pl. Sunglasses (.

Definition: A convex lens of glass for producing heat by converging the sun's rays into a focus. "Lighting a cigar with a sunglass." Hawthorne.

Source: Webster’s Unabridged Dictionary 1913 Edition



RESET




Word of the Day

19 May 2025

CHEMICAL

(adjective) of or made from or using substances produced by or used in reactions involving atomic or molecular changes; “chemical fertilizer”


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Coffee Trivia

International Coffee Day (September 29) is an occasion to promote and celebrate coffee as a beverage, with events occurring in places across the world. A day to promote fair trade coffee and raise awareness for the coffee growers’ plight. Other countries celebrate this event on October 1.

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