heat absorbing
/ˈhiːt əbˌzɔːrbɪŋ/
adjective
- Designed or able to take in and hold heat from the surroundings.
- The heat-absorbing glass on the windows helps keep the building cool in summer.
- A dark, heat-absorbing roof can make the house warmer in winter.
- Solar panels use heat-absorbing materials to capture energy from the sun.