insulation
1 ENTRIES FOUND:
Britannica Dictionary definition of INSULATION
[noncount]
1
:
a material or substance that is used to stop heat, electricity, or sound from going into or out of something
:
a material that insulates something
-
They used fiberglass insulation.
2
a
:
the quality or state of being insulated
-
These materials provide the insulation needed in cold weather.
b
:
the act of insulating something
-
I hired them to do the insulation of the attic. [=to insulate the attic]
