資料來源 : pyDict

等地溫線; 地等溫線

資料來源 : Webster's Revised Unabridged Dictionary (1913)

Isogeotherm \I`so*ge"o*therm\, n. [Iso- + Gr. gh^ the earth +
   qe`rmh heat.] (Phys. Geog.)
   A line or curved surface passing beneath the earth's surface
   through points having the same mean temperature.