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2017 Word of the Year

lightproof

[lahyt-proof] /ˈlaɪtˌpruf/
adjective
1.
impervious to light:
a lightproof film cartridge.
Origin of lightproof
1920-1925
First recorded in 1920-25; light1 + -proof
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for lightproof
Historical Examples
  • This incredible blackness made a lightproof wall for the recessed hollow at the foot of the cliff.

    Planet of the Damned Harry Harrison

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Word Value for lightproof

19
21
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