- a thin, round or square piece of glass used to cover an object mounted on a slide for microscopic observation.
Origin of cover glass
First recorded in 1880–85
Also called cover slip.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for cover glass
To preserve these specimens they must be surrounded with some kind of cover-glass cement.Histology of the Blood
A cover-glass is cemented over the scale to protect it from injury.
Pour on the film as much of the mordant as the cover-glass will hold.
Pour on the film as much of the stain as the cover-glass will hold.
For a further study of the blood kill a toad or frog and place a drop of the blood on a slide with a cover-glass over it.Elementary Zoology, Second Edition
Vernon L. Kellogg
- a thin square of mounted glass used to protect a photographic slide
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012