dewar

noun

dew·​ar ˈdü-ər How to pronounce dewar (audio)
 also  ˈdyü-
often capitalized
: a glass or metal container made like a vacuum bottle that is used especially for storing liquefied gases

called also Dewar flask

Examples of dewar in a Sentence

Recent Examples on the Web Some two hours later, he was submerged in liquid nitrogen in the modern dewar that Alcor scientists monitor remotely. Heather Mundt, Smithsonian Magazine, 5 Mar. 2024 Standard procedure is to put specimens into aluminum tanks called dewars, which contain liquid nitrogen. Tiffany Ap, Quartz, 20 Mar. 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'dewar.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

Sir James Dewar

First Known Use

1939, in the meaning defined above

Time Traveler
The first known use of dewar was in 1939

Dictionary Entries Near dewar

Cite this Entry

“Dewar.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dewar. Accessed 28 Mar. 2024.

Biographical Definition

Dewar

biographical name

Dew·​ar ˈdü-ər How to pronounce Dewar (audio)
ˈdyü-
Sir James 1842–1923 Scottish chemist and physicist
Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!