adjective ther·mal \ˈthər-məl\

: of, relating to, or caused by heat

: designed to keep you warm by preventing heat from leaving your body

: having hot water flowing out of the ground

Full Definition of THERMAL

[Latin thermae public baths, from Greek thermai, plural of thermē] :  of, relating to, or marked by the presence of hot springs <thermal waters>
a :  of, relating to, or caused by heat <thermal stress> <thermal insulation>
b :  being or involving a state of matter dependent upon temperature <thermal conductivity> <thermal agitation of molecular structure>
c :  having low energies of the order of those due to thermal agitation <thermal neutrons>
:  designed (as with insulating air spaces) to prevent the dissipation of body heat <thermal underwear>
ther·mal·ly \-mə-lē\ adverb

Origin of THERMAL

Greek thermē
First Known Use: 1742

Other Physics Terms

amplitude, centrifugal, centripetal, convection, gradient, hysteresis, kinetic, lase, quantum

Rhymes with THERMAL



: a rising current of warm air that is produced when the sun heats an area of the ground

thermals : thermal clothing or underwear

Full Definition of THERMAL

:  a rising body of warm air

First Known Use of THERMAL


Other Climate/Meteorology Terms

monsoon, occlusion, ozone, rime, squall, zephyr


adjective ther·mal \ˈthər-məl\   (Medical Dictionary)

Medical Definition of THERMAL

:  of, relating to, or caused by heat <tactile and thermal senses>
:  being or involving a state of matter dependent upon temperature <thermal agitation of molecular structure>
ther·mal·ly \-mə-lē\ adverb


Next Word in the Dictionary: thermal agitationPrevious Word in the Dictionary: thermaeAll Words Near: thermal
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