Adjacent Words

bell jar definitions

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WordNet (r) 3.0 (2005)

n
1: a bell-shaped glass cover used to protect and display delicate objects or to cover scientific apparatus or to contain gases [syn: bell jar, bell glass]

Merriam Webster's

noun Date: circa 1849 a bell-shaped usually glass vessel designed to cover objects or to contain gases or a vacuum

Webster's 1913 Dictionary

Jar Jar, n. [F. jarre, Sp. jarra, from Ar. jarrah ewer; cf. Pers. jarrah.] 1. A deep, broad-mouthed vessel of earthenware or glass, for holding fruit, preserves, etc., or for ornamental purposes; as, a jar of honey; a rose jar. --Dryden. 2. The measure of what is contained in a jar; as, a jar of oil; a jar of preserves. Bell jar, Leyden jar. See in the Vocabulary.

Webster's 1913 Dictionary

Bell jar Bell" jar` (Phys.) 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.