isogeotherm

[ ahy-suh-jee-uh-thurm ]

noun

1. an imaginary line connecting all points within the earth having the same mean temperature.

isogeotherm

/ ˌaɪsəʊˈdʒiːəʊˌθɜːm /

noun

1. an imaginary line below the surface of the earth connecting points of equal temperature

Derived Forms

• ˌisoˌgeoˈthermal, adjective

Other Words From

• iso·geo·thermal iso·geo·thermic adjective

Word History and Origins

Origin of isogeotherm¹

First recorded in 1860–65; iso- + geo- + therm