lightproof
[ lahyt-proof ]
/ ˈlaɪtˌpruf /
adjective
impervious to light: a lightproof film cartridge.
Words nearby lightproof
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
Examples from the Web for lightproof
This incredible blackness made a lightproof wall for the recessed hollow at the foot of the cliff.
Planet of the Damned|Harry Harrison