What is the definition of macro linguistics? Macro-linguistics is the study of language and the cultural and  behavioral features associated with the language. Macro-linguistics  study meanings and how the language andâ¦ meaning function within  social systems.
Beaker (drinkware), a beverage container. Beaker (glassware), or laboratory beaker, a glass object used for holding fluids and chemicals in a laboratory setting. Beaker (archaeology), a prehistoric drinking vessel. Beaker culture, the archaeological culture often called the Beaker people.
A watchglass can be used as a beaker cover, but you can also place small amounts of chemicals on it and then heat it (for example, to evaporate some water from a wet chemical). From Wikipedia: A watch glass is a circular, slightly concave piece of glass used in chemistry as a surface to evaporate a liquid, or as a cover for a beaker. The latter use is generally applied to prevent dust or other particles entering the beaker; the watch glass does not completely seal the beaker, and so gas exchanges still occur.