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thermal

thermal

106 4.4
Relating to heat or made to keep heat in
  • adjective
  • /ˈθɜrməl/
translation icon : térmico
  • During the hike, I wore thermal leggings under my pants to stay warm in the cold weather.
  • thermal energy
  • thermal conductivity
  • thermal expansion

You're wearing boots, thermal socks and three blankets.

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Examples

  • Here's a chart showing a daily thermal profile for the campus.

  • Thermal imaging shows clusters of people in the Longhouse at the top of the village.

  • So it's called a thermal hair heat cap.

  • But also the thermal environment in the chamber, it's hot.

  • And normally the thermal sensor tells you it's cold.

  • Another item from Joy Co is the thermal protection spray.

  • We've set up a thermal camera for observation.

  • You're wearing boots, thermal socks and three blankets.

  • After all, wind turbines produce no air, water, or thermal pollutants, and emit no greenhouse gases.

    Academic text (2008)
  • Such gas turbine systems promise an increased thermal-to-electric conversion efficiency of 50 percent over conventional gas turbines.

    Academic text (2012)

Synonyms

thermic
vsthermal
1 7.8

Happening because of heat

is broader, relating to heat, temperature, or to keeping heat inside
caloric
vsthermal
  • Archaic
6.6

Relating to heat in science

is the common modern term for heat or for keeping heat in

Antonyms

nonthermal
  • Specialized
8.0

Does not use heat

Compounds

thermal conductivity
  • Specialized
1 4.8

How easily heat moves through a material

British thermal unit
  • Specialized
1 6.8

A unit of heat equal to the heat needed to raise one pound of water by one degree Fahrenheit

thermal pollution
  • Specialized
1 5.8

A harmful rise in river or lake water temperature caused by hot water from factories

thermal reactor
  • Specialized
1 6.8

A nuclear power plant that makes electricity by splitting atoms with slow neutrons

thermal equilibrium
  • Specialized
1 6.4

A state where all parts have the same temperature and no heat flows between them

thermal insulation
  • Specialized
1 3.8

Material that reduces heat moving between inside and outside

thermal resistance
  • Specialized
1 5.8

How well a material stops heat moving through it

A natural hot pool of water that comes from the ground

thermal printer
  • Specialized
3.6

A machine that prints by using heat on special paper

thermal barrier
  • Specialized
8.1

A limit to how fast planes or spacecraft can go because the air makes them very hot at high speed

thermal emission
  • Specialized
6.8

The release of electrons from a material because it is very hot

thermal resistor
  • Specialized
4.8

An electronic part that changes how much it reduces electric current when it gets hot or cold

solar thermal system
  • Specialized
3.7

A system that uses sunlight to make heat for hot water or heating buildings

How Warm

thermal
106 4.4
warm
1.0
cool
608 1.0

Surface Forms

thermal positive

Morphology

thermal = therm (semi-transparent) = therm + al

The heat-related meaning is fairly clear, but the bound root therm- is not an everyday word for most learners.

Etymology

The word __thermal__ comes from the Greek root therm- meaning 'heat', the same root you see in thermometer and thermostat. So thermal** items are about heat or are made to keep heat in.