bell jar definition

  • noun:
    • A cylindrical glass vessel with a rounded top and an open base, used to protect and show fragile objects or even to establish vacuum pressure or a controlled atmosphere in medical experiments.
    • a bit of laboratory gear employed for creating vacuums, usually made of cup in a bell-like form.
    • See in Vocabulary.
    • A bell-shaped cup container, employed by chemists, in real laboratories, etc., for getting a gas less heavy than the environment or other medium which its plunged, and for similar uses. It's a form of bell-glass.
    • a bell-shaped glass cover regularly protect and display delicate things or to cover scientific equipment or even contain gases
  • others:
    • A glass vessel, varying in size, open at the bottom and sealed towards the top like a bell, and having a knob or handle at the top for lifting it. It is used for a good selection of purposes; because, with the air pump, and for holding fumes, also for keeping the dirt from articles subjected to see.

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