noun🔗Share等温線A line on a graph or chart, such as a weather map, along which all the points have the same temperature."The weather map showed an isotherm running through the city, indicating that the temperature was the same all along that line. "天気図は、その線に沿って気温が同じであることを示す、都市を通過する等温線を示した。weathergeographyscienceChat with AIVocabulary GamePractice Reading