Sunglass meaning

sŭn'glăs'
A convex lens used to focus the sun's rays and produce heat, especially for ignition.
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Eyeglasses with tinted or polarizing lenses to protect the eyes from the sun's glare.
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Eyeglasses with special lenses, usually tinted, to protect the eyes from the sun's glare.
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Singular form of sunglasses; used chiefly in compounds.

A sunglass holder.

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(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.

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