sunglass

¹

[suhn-glas, -glahs]

noun

1. burning glass.

sunglass

²

[suhn-glas, -glahs]

adjective

1. of or relating to sunglasses.

   a new concept in sunglass design.

sunglass

/ ˈsʌnˌɡlɑːs /

noun

1. a convex lens used to focus the sun's rays and thus produce heat or ignition; burning glass

Word History and Origins

Origin of sunglass¹

First recorded in 1800–10; sun + glass