lightproof

American  

[lahyt-proof] / ˈlaɪtˌpruf /

adjective

1. impervious to light: lights.

   a lightproof film cartridge.

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Etymology

Origin of lightproof

First recorded in 1920–25; light ¹ + -proof

Example Sentences

Under infrared light, LaBossiere moved the rolls of film into lightproof drums.

From Seattle Times

To lightproof the bedroom, “blackout window treatments are a must,” said Greg Roth, a designer at Home Front Build in Los Angeles, by email.

From Washington Post

For his signature piece, “Sungazing” — which has been shown in several major cities — he used a simple lightproof box as a camera and photosensitive paper as film.

From Washington Post

That’s pretty amazing, considering that the space was never designed to be lightproof.

From Washington Post

All those years of creams and bleeding and bandages could end with a pair of lightproof gloves.

From New York Times