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1. A shallow glass dish used as a beaker cover or evaporating surface.
2. A concavo-convex glass or plastic disk used to cover the face of a watch.
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|Noun||1.||watch glass - laboratory glassware; a shallow glass dish used as an evaporating surface or to cover a beaker|
dish - a piece of dishware normally used as a container for holding or serving food; "we gave them a set of dishes for a wedding present"
|2.||watch glass - a protective cover that protects the face of a watch|
protective cover, protective covering, protection - a covering that is intend to protect from damage or injury; "they had no protection from the fallout"; "wax provided protection for the floors"