Flask
Flask noun a container for liquids. a narrow-necked glass container, typically conical or spherical, used in a laboratory to hold reagents or samples. a metal container for storing a small amount of liquor, typically to be carried in one's pocket. Flasks can be used for making solutions or for holding, containing, collecting, or sometimes volumetrically measuring chemicals, samples, solutions, etc. for chemical reactions or other processes such as mixing, heating, cooling, dissolving, precipitation, boiling (as in distillation), or analysis.