英语词汇dewar flask的起源、历史背景-英语词源词典

词汇	dewar flask
词源	dewar flask. The dewar flask, the original thermos bottle, is named for its inventor, Sir James Dewar (1842–1923), a Scot- tish chemist and physicist who devised the vacuum-jacketed vessel in 1892 for the storage of liquid gases at low tempera- tures. The thermos takes its name from the company that adapted Dewar’s invention commercially. Originally a trade- mark, the word is now spelled without a capital in most dictionaries.
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英语词源词典收录了13259条英语词源词条，基本涵盖了全部常用英语词汇的起源、历史，是研究英语词汇或通过词源学英语的必备工具。