bell jar
nounfeminine/ʁɨˈdomɐ/low
re·do·ma
Definition
A glass container, typically bell-shaped, used to cover and protect objects or for scientific experiments.
The delicate flower was kept under a bell jar.
In the lab, they used a bell jar for the vacuum experiment.
Common collocations
glass bell jarunder a bell jar
Etymology
Do árabe 'ratuma'.