cover glass

noun

1. a thin, round or square piece of glass used to cover an object mounted on a slide for microscopic observation.

cover glass

noun

1. a thin square of mounted glass used to protect a photographic slide

Word History and Origins

Origin of cover glass¹

First recorded in 1880–85

Example Sentences

Touch the center of a cover-glass to the top of the drop and quickly place it, blood side down, upon a slide.

From Project Gutenberg

Let dry, apply a cover-glass, and run glacial acetic acid underneath it.

From Project Gutenberg

When considerable numbers are present, they can be detected and often identified in cover-glass smears.

From Project Gutenberg

The film of ink may be covered with a long cover-glass and xylol balsam as a permanent preparation.

From Project Gutenberg

Dip the cover-glass into a beaker containing hot water in order to remove some of the vaseline adhering to it.

From Project Gutenberg