thermal

thermal
adjective
  1. of or relating to heat
    热的；热量的；由热造成的
    ■another term for geothermal
    同 geothermal
    ■(of a garment) made of a fabric that provides exceptional insulation to keep the body warm
    （衣服）保暖的
    thermal underwear.
    保暖内衣。
noun
  1. an upward current of warm air, used by gliders, balloons, and birds to gain height
    上升的热气流
  2. (一般作 thermals)a thermal garment, especially underwear
    保暖衣服（尤指内衣）
派生
thermally
adverb
语源
  1. mid 18th cent. (in the sense 'relating to hot springs'): from French, from Greek thermē 'heat'
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