any strong synthetic fabric used in civil engineering, as to retain an embankment
/ˈdʒiːəʊˌθɜːm/ noun 1. a line or surface within or on the earth connecting points of equal temperature 2. the representation of such a line or surface on a map or diagram
[jee-oh-thur-muh l] /ˌdʒi oʊˈθɜr məl/ adjective 1. of or relating to the internal heat of the earth. /ˌdʒiːəʊˈθɜːməl/ adjective 1. of or relating to the heat in the interior of the earth adj. 1875, from geo- + thermal. geothermal (jē’ō-thûr’məl) Relating to the internal heat of the Earth. The water of hot springs and geysers […]
- Geothermal energy
noun a form of energy obtained from within the earth, originating in its core; also, energy produced by extracting the earth’s internal heat Energy obtained by tapping underground reservoirs of heat, usually near volcanoes or other hot spots on the surface of the Earth. Note: At present, little of the world’s energy supply is obtained […]
noun 1. the increase in temperature with increasing depth within the earth.