noun🔗ShareIsotermaA 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. "El mapa meteorológico mostraba una isoterma que atravesaba la ciudad, lo que indicaba que la temperatura era la misma a lo largo de esa línea.weathergeographyscienceChat with AIVocabulary GamePractice Reading