insulant

Definitions of insulant
  1. noun
    a material that reduces or prevents the transmission of heat or sound or electricity
    synonyms: insulating material, insulation
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    types:
    lagging
    used to wrap around pipes or boilers or laid in attics to prevent loss of heat
    corkboard
    a heat-insulating building material consisting of cork granules that are made into sheets by compressing and baking
    type of:
    building material
    material used for constructing buildings
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