noun
a bell-shaped glass cover used to protect and display delicate objects or to cover scientific apparatus or to contain gases
• Syn: ↑bell jar
• Hypernyms: ↑protective covering, ↑protective cover, ↑protection
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noun : bell jar
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bell glass,
= bell jar. (Cf. ↑bell jar)
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a bell-shaped glass cover, especially for plants
Useful english dictionary. 2012.