watch glass
1Watch glass — Watch Watch (w[o^]ch), n. [OE. wacche, AS. w[ae]cce, fr. wacian to wake; akin to D. wacht, waak, G. wacht, wache. [root]134. See {Wake}, v. i. ] [1913 Webster] 1. The act of watching; forbearance of sleep; vigil; wakeful, vigilant, or constantly… …
2watch glass — noun 1. laboratory glassware; a shallow glass dish used as an evaporating surface or to cover a beaker • Hypernyms: ↑dish 2. a protective cover that protects the face of a watch • Syn: ↑crystal, ↑watch crystal • Hypernyms: ↑prote …
3Watch glass — A watch glass is a circular, slightly piece of glass used in chemistry as a surface to evaporate a liquid, to hold solids while being weighed, or as a cover for a beaker. The latter use is generally applied to prevent dust or other particles… …
4watch glass — laikrodžio stiklas statusas T sritis chemija apibrėžtis Įgaubtas disko pavidalo stiklas indams uždengti, reakcijoms atlikti, medžiagoms sverti ir džiovinti. atitikmenys: angl. clock glass; watch glass rus. покровное стекло; часовое стекло …
5watch glass — noun 1》 Brit. a glass disc covering the dial of a watch. 2》 a concave glass disc used in a laboratory to hold material for use in experiments …
6watch glass — small shallow dish for holding small quantity of a solution; small dish used in laboratories to evaporate liquids (Science); protective transparent cover (glass or plastic) for covering the face of a clock or watch …
7watch glass — noun An item of glass laboratory equipment consisting of a simple slightly concave circle of glass. It is a general utility item, used to hold small samples, to evaporate liquids, to cover a beaker, and so on …
8watch-glass — hour glass, glass filled with sand that falls to the other side (used to measure time) …
9watch-glass — /ˈwɒtʃ glas/ (say woch glahs) noun a transparent cover for the face of a watch …
10watch-glass — …
