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lightproof

American  
[lahyt-proof] / ˈlaɪtˌpruf /

adjective

  1. impervious to light.

    a lightproof film cartridge.


Etymology

Origin of lightproof

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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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

From Seattle Times • Dec. 17, 2023

But UnReal is darker than a locked box inside a lightproof cube sitting on the bottom of the ocean at midnight.

From Slate • Jun. 29, 2015

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

From Washington Post • Jan. 30, 2015

The researchers collected the benthic organisms by suctioning them gently into a lightproof box with a vacuum hose.

From Science Magazine • Sep. 7, 2012

This is my padded cell, soundproof, lightproof, telephoneproof; a wholesome reminder of the basic, the primeval things.

From The Brain by Blade, Alexander