名詞 isotherm:

1. (meteorology) an isogram connecting points having the same temperature at a given time

i.so.therm

n.（名詞）
A line drawn on a weather map or chart linking all points of equal or constant temperature.
恒溫線；等溫線：氣象地圖或圖表上所畫的一條連結(jié)同溫或恒溫各點(diǎn)的線

來(lái)源：
From French isotherme [having the same temperature]
源自 法語(yǔ) isotherme [具有相同的溫度]
Greek iso- [iso-]
希臘語(yǔ) iso- [前綴，表.同；等.]
Greek thermô [heat] * see -therm
希臘語(yǔ) thermô [熱] *參見(jiàn) -therm