insulation

From insulate

• (Received Pronunciation) IPA^(key): /ˌɪnsjʊˈleɪʃən/
• (US) IPA^(key): /ˌɪnsəˈleɪʃən/

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• Rhymes: -eɪʃən

insulation (countable and uncountable, plural insulations)

1. The act of insulating, or the state of being insulated; detachment from other objects; isolation.
   • 2013 March 1, Nancy Langston, “Mining the Boreal North”, in American Scientist‎, volume 101, number 2, page 98:

     Reindeer are well suited to the taiga’s frigid winters. They can maintain a thermogradient between body core and the environment of up to 100 degrees, in part because of insulation provided by their fur, and in part because of counter-current vascular heat exchange systems in their legs and nasal passages.

2. Any of a variety of materials designed to reduce the flow of heat, either from or into a building.
3. (engineering) The act of separating a body from others by nonconductors, so as to prevent the transfer of electricity, heat, or sound
4. (engineering) The state of a body so separated.
5. (electrical) a medium in which it is possible to maintain an electrical field with little supply of energy from additional sources.