also: カバーグラス
noun
cover glass; coverslip
A thin piece of glass placed over a specimen on a microscope slide. Primarily a technical term in microscopy and laboratory settings.
顕微鏡で観察する前に、試料の上にカバーガラスをかける。
Before observing under the microscope, place a cover glass over the specimen.
カバーガラスはスライドガラスより薄い。
A cover glass is thinner than a slide glass.
A slide glass is the thicker glass plate that holds the specimen, while a cover glass is the thin piece placed on top.
Loanword from English 'cover glass'.