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WordReference Random House Unabridged Dictionary of American English © 2024Dew•ar (do̅o̅′ər, dyo̅o̅′-),USA pronunciation n. - Biographical Sir James, 1842–1923, Scottish chemist and physicist.
- Chemistry, ThermodynamicsSee Dewar vessel.
Collins Concise English Dictionary © HarperCollins Publishers:: Dewar /ˈdjuːə/ n - Donald. 1937–2000, Scottish Labour politician; secretary of state for Scotland (1997–99); first minister of Scotland (1999–2000)
- Sir James. 1842–1923, Scottish chemist and physicist. He worked on the liquefaction of gases and the properties of matter at low temperature, invented the vacuum flask, and (with Sir Frederick Abel) was the first to prepare cordite
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