英语词汇litmus怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

　

单词	litmus
释义	Definition of litmus in English: litmus noun ˈlɪtməsˈlɪtməs mass noun A dye obtained from certain lichens that is red under acid conditions and blue under alkaline conditions. 石蕊 Example sentencesExamples During the 1660s, Robert Boyle discovered that certain plant extracts, such as litmus, can be used to distinguish acids from bases. In the presence of a basic solution, litmus will lose hydronium ions and turn blue. Origin Middle English: from Old Norse lit-mosi, from litr 'dye' + mosi 'moss'. Definition of litmus in US English: litmus nounˈlɪtməsˈlitməs A dye obtained from certain lichens that is red under acid conditions and blue under alkaline conditions. 石蕊 Example sentencesExamples In the presence of a basic solution, litmus will lose hydronium ions and turn blue. During the 1660s, Robert Boyle discovered that certain plant extracts, such as litmus, can be used to distinguish acids from bases. Origin Middle English: from Old Norse lit-mosi, from litr ‘dye’ + mosi ‘moss’.
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更新时间：2025/8/7 22:21:36