bell jar

noun

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

Illustration of bell jar

Examples of bell jar in a Sentence

Recent Examples on the Web

Many of the scents are housed in the brand's iconic bell jars. — Emily Kelleher, InStyle, 27 June 2026

The records inside will be in a protective metal bell jar with an air pocket designed to guard against moisture. — Joe Brandt, CBS News, 27 Feb. 2026

Showcase miniature pumpkins in an elegant fashion with a bell jar or cloche. — Emily Williams, Better Homes & Gardens, 7 Oct. 2025

Its ringing, however, is now barely audible beneath the glass bell jar protecting the experiment. — IEEE Spectrum, 2 Oct. 2025

Word History

First Known Use

1806, in the meaning defined above

Rhymes for bell jar

• adar
• afar
• ajar
• alar
• alvar
• bazaar
• bizarre
• boxcar
• boyar
• bulbar
• cachar
• cigar

Kids Definition

bell jar

noun

: a bell-shaped usually glass container, designed to cover objects, hold gases, or keep a vacuum

Medical Definition

bell jar

noun

ˈbel-ˌjär 

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