WordNet
cover glass
n. a small and very thing piece of glass used to cover the specimen on a microscope slide [syn: cover slip]
Usage examples of "cover glass".
She smeared a cover glass over a drop of fluid on a slide and set it to dry.
Behind them, with staggering sound and visual effects, Martian colonists were battening hatches and shoveling Marsdust to cover glass walls.
Then I drew a breath before I scrabbled under and past the protruding edge of the cover glass to stand on the roof.