C1adjectiveformalscienceenvironment
US/ˈθɜːr.məl/
UK/ˈθɜː.məl/
connected with heat, or designed to keep heat in
In context
The house has thermal insulation to keep it warm in winter.
Thermal energy from the ground can be used to heat buildings.
Hikers wore thermal underwear because of the freezing weather.
Words that go with thermal
adjective + noun
- thermal energyThermal energy is stored in the hot water tank.
- thermal insulationGood thermal insulation lowers heating bills.
- thermal powerThe country still relies on thermal power stations.
- thermal expansionThermal expansion made the metal bridge grow longer in summer.
- thermal imagingThermal imaging showed where the building was losing heat.
- thermal underwearPack thermal underwear for the mountain trip.
Common mistakes
Incorrect:
thermal underwearsCorrect: thermal underwear