Origin of isotherm
Examples from the Web for isotherm
Isotherm, a compound of two Greek words meaning equal temperature, is the name given in meteorology to such lines as this.
The January isotherm of 15 F. skirts its northern shore; that of 40 crosses its southern border.
The polar limits of the temperate zones are fixed by the isotherm of 50 for the warmest month.
On a second blank weather map draw an isotherm through your station inclined from northwest to southeast.
A large area in the interior of Greenland, and one of about equal extent around the pole, are within the isotherm of 32.