bell jar

bell jar

n. A cylindrical glass vessel with a rounded top and an open base, used to protect and display fragile objects or to establish a vacuum or a controlled atmosphere in scientific experiments.

bell jar

n a bell-shaped glass cover used to protect flower arrangements or fragile ornaments or to cover apparatus in experiments, esp to prevent gases escaping

bell′ jar`

n. a bell-shaped glass cover designed esp. for protecting objects or for containing gases or a vacuum in chemical experiments.

Thesaurus

Noun

1.

bell jar - a bell-shaped glass cover used to protect and display delicate objects or to cover scientific apparatus or to contain gasesbell glassprotective cover, protective covering, protection - a covering that is intend to protect from damage or injury; "they had no protection from the fallout"; "wax provided protection for the floors"

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