Definition of Bell jar

1. Noun. A bell-shaped glass cover used to protect and display delicate objects or to cover scientific apparatus or to contain gases.

Exact synonyms: Bell Glass
Generic synonyms: Protection, Protective Cover, Protective Covering

Definition of Bell jar

1. Noun. A piece of laboratory equipment used for creating vacuums, often made of glass in a bell-like shape. ¹

¹ Source:

Medical Definition of Bell jar

1. 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. Source: Websters Dictionary (01 Mar 1998)

Bell Jar Pictures

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Lexicographical Neighbors of Bell Jar

bell buoy
bell buoys
bell captain
bell captains
bell cot
bell cote
bell curve
bell curves
bell deck
bell founder
bell foundry
bell gable
bell heather
bell jar (current term)
bell jars
bell magpie
bell metal
bell morel
bell out
bell pepper
bell peppers
bell push
bell ringer
bell ringers
bell ringing
bell rope
bell ropes
bell seat

Literary usage of Bell jar

Below you will find example usage of this term as found in modern and/or classical literature:

1. Proceedings of the Royal Society of London by Royal Society (Great Britain) (1905)
"In further experiments a bell-jar was placed on the plate of an air pump and exhausted; over it was inverted a Leyden jar from which the interior connecting ..."

2. The Chemical News and Journal of Industrial Science (1908)
"The bell-jar still remained fimly fixed to the plate, and on removing it no trace of SO2 was evident, nor had any apparent decomposition taken place. ..."

3. A French-English Dictionary for Chemists by Austin McDowell Patterson (1921)
"d douille, open-top bell jar, bell jar having a mouth or tubulation at the top. — d vide, vacuum bell jar (with lower edge ground to fit air-tight). clocher ..."

4. Science by American Association for the Advancement of Science (1920)
"After the animal has been placed under the bell jar, a very small quantity of ether or chloroform is poured through the opening in the top, and it is then ..."

5. Studien zur Entwicklungsgeschichte des japanischen Riesensalamanders by Charles Stuart Gager, Daniel Lange (1916)
"Under each bell-jar place a piece of lighted candle, 2-3 in. high, ... State, in a well-worded paragraph, the condition in each bell-jar as to light, ..."

6. Proceedings of the American Philosophical Society Held at Philadelphia for by American Philosophical Society (1906)
"The sand bath used for heating the sulphur is placed on a glass tripod under the bell jar, and an alcohol lamp is used to heat the sand. ..."

7. Phytopathology by American Phytopathological Society (1917)
"... Ribes bush under bell jar On Ribes bush under bell jar On Ribes bush under bell jar On Ribes bush under bell jar On Ribes bush under bell jar On Ribes ..."

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