vacuum flask

noun

Definition of vacuum flask

Examples of vacuum flask in a Sentence

Recent Examples on the Web It is then pumped into a truck-sized double-thick vacuum flask on wheels and sent to hospitals. Fox News, "Medical oxygen scarce in world's poorest regions during coronavirus pandemic," 24 June 2020 It is then pumped into a truck-sized double-thick vacuum flask on wheels and sent to hospitals. Washington Post, "Scarce medical oxygen worldwide leaves many gasping for life," 24 June 2020 Those without vehicles were seen carrying fuel in cans, bottles, and even vacuum flasks. Riyaz Wani, Quartz India, "Kashmir descends into a witch’s brew of fear and suspense," 4 Aug. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'vacuum flask.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of vacuum flask

1917, in the meaning defined above

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The first known use of vacuum flask was in 1917

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Cite this Entry

“Vacuum flask.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/vacuum%20flask. Accessed 26 Feb. 2021.

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More from Merriam-Webster on vacuum flask

Britannica.com: Encyclopedia article about vacuum flask

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