watch-glass - significado y definición. Qué es watch-glass
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Qué (quién) es watch-glass - definición

Syracuse watch glass

Watch glass         
  • [[Caesium fluoride]] sample on a watch glass
  • Front and back image of different sizes for watch glasses used in laboratory.
  • Crystal solids on a watch glass with folded paper above
  • Drying crystal solids using a watch glass and passing a stream of dry air from an inverted funnel
PIECE OF LABRATORY GLASSWARE
Watchglass; Watch glasses; Watchglasses
A watch glass is a circular concave piece of glass used in chemistry as a surface to evaporate a liquid, to hold solids while being weighed, for heating a small amount of substance and as a cover for a beaker. A larger watchglass may be referred to as a clockglass.
watch glass         
  • [[Caesium fluoride]] sample on a watch glass
  • Front and back image of different sizes for watch glasses used in laboratory.
  • Crystal solids on a watch glass with folded paper above
  • Drying crystal solids using a watch glass and passing a stream of dry air from an inverted funnel
PIECE OF LABRATORY GLASSWARE
Watchglass; Watch glasses; Watchglasses
¦ 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.
Neighborhood watch         
  • Speed limit and neighborhood watch signs in [[Durham, North Carolina]], [[United States]].
  • ACT]], [[Australia]].
  • Neighbourhood Watch Sign, Combat Force<ref>[http://www.combatforce.co.za Combat Force] Retrieved 23 October 2019</ref> Assistance (South Africa)
ORGANIZATION OF RESIDENTS WATCHING FOR CRIMES
Neighbourhood watch; Town watch; Block watch; Neighborhood Watch; Citizen crime patrol; Citizen patrol; Community watch; Block Watch; Town Watch; Neighborhood crime watch; Boris the Burglar
A neighborhood watch or neighbourhood watch (see spelling differences), also called a crime watch or neighbourhood crime watch, is an organized group of civilians devoted to crime and vandalism prevention within a neighborhood.

Wikipedia

Syracuse dish
A Syracuse dish or Syracuse watch glass is a shallow, circular, flat-bottomed dish of thick glass. It is used as laboratory equipment in biology.