lightproof

It should be all right; he had kept it in a lightproof bag away from any heat.

The slot is protected by a lightproof door.

Half-stifled, wholly terrified, she felt herself being enclosed in some kind of lightproof bag that shut the world away.

Cells were delivered in boxes of ten, wrapped in a lightproof wrapper.

Previously it's been just a blank sheet of printing paper shut up in a lightproof envelope; now it has a function, an image, a certainty.

Disadvantages abound with my physical condition, and spending the day locked up in a lightproof trunk is the one that irks me the most.

"The electrode leads from the implant are sticking up between the two Kevlar vests and we've got the device in a lightproof bag."

Who's got the lightproof bag?"

In amateur processing, the film is removed from the camera and wound onto a reel in complete darkness (usually inside a darkroom with the safelight turned off or a lightproof bag with arm holes).