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
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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
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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
Cite this Entry
“Dewar.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dewar. Accessed 18 Jul. 2025.
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