WordLens

thermal

1 of 2adjective
/ˈθɜr.məl/
1

(of clothes) designed with special material that keeps the wearer warm

  • She wore a thermal jacket and pants to stay warm during the winter hike.
  • Keeping warm in the winter is important, so I invested in thermal socks and a cozy blanket.
  • The outdoor enthusiasts wore thermal base layers to maintain their body temperature in the chilly conditions
2

related to heat or temperature, including how heat moves, how materials expand with temperature changes, and the energy stored in heat

C1
  • As the temperature increased, the metal expanded due to thermal expansion.
  • The thermal conductivity of copper makes it an excellent material for heat sinks and electrical wiring.
  • During the hike, I felt the sun's thermal rays warming my skin.
  • Heat transfer occurs through thermal conduction, convection, and radiation.
  • Thermal imaging cameras detect infrared radiation emitted by objects to visualize temperature variations.
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3

relating to a naturally heated water source

  • The town is famous for its thermal baths, which attract visitors year-round.
  • We soaked in a thermal spring nestled in the mountains.
  • Ancient Romans often built public thermal spas near natural hot springs.
  • The resort offers various thermal treatments believed to improve circulation.
  • Minerals from the thermal waters are said to have healing properties.