insulation
US /ˌɪn.səˈleɪ.ʃən/
UK /ˌɪn.səˈleɪ.ʃən/
1.
material used to insulate something, especially a building
:
•
The house needs better insulation to keep it warm in winter.
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Fiberglass is a common type of insulation.
2.
the action of insulating something
:
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Proper insulation of the pipes prevents them from freezing.
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The company specializes in thermal and acoustic insulation.