单词	isotherm
释义	isotherm noun iso·​therm ˈī-sə-ˌthərm  1 : a line on a map or chart of the earth's surface connecting points having the same temperature at a given time or the same mean temperature for a given period 2 : a line on a chart representing changes of volume or pressure under conditions of constant temperature Example Sentences Recent Examples on the Web Joining the exodus were a 70-year-old Syrian grandmother with only flip-flops to protect her feet from piercing cold and a six-day-old baby from Afghanistan wrapped in an isotherm bag. David Gauthier-villars, WSJ, 4 Mar. 2020 The isotherm lines on Humboldt’s map had ups and downs that deviated from lines of latitude. Greg Miller, Smithsonian, 16 Oct. 2019 Both locations sit at something called a zero degree isotherm, where the average air temperature hovers right around the freezing point of water. Megan Molteni, WIRED, 30 Aug. 2016 Word History Etymology French isotherme, adjective First Known Use 1859, in the meaning defined at sense 1 Medical Definition isotherm noun iso·​therm ˈī-sə-ˌthərm  : a line on a chart representing changes of volume or pressure under conditions of constant temperature
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