Bell jar
() A glass vessel, varying in size, open at the bottom and closed at the top like a bell, and having a knob or handle at the top for lifting it. It is used for a great variety of purposes; as, with the air pump, and for holding gases, also for keeping the dust from articles exposed to view.
Similar Words:
Bell animalcule Bell bearer Bell crank Bell jar Bell metal Bell pepper Bell process Bell system of control