Noun

(en noun)

(physics) An electrically insulating or nonconducting material considered for its electric susceptibility, i.e. its property of polarization when exposed to an external electric field.

Noun

The act of insulating, or the state of being insulated; detachment from other objects; isolation.

*{{quote-magazine, date=2013-03

, author=Nancy Langston , title=Mining the Boreal North , volume=101, issue=2, page=98 , magazine= citation , passage=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.}}

Any of a variety of materials designed to reduce the flow of heat, either from or into a building.

(engineering) The act of separating a body from others by nonconductors, so as to prevent the transfer of electricity, heat, or sound

(engineering) The state of a body so separated.

(electrical) a medium in which it is possible to maintain an electrical field with little supply of energy from additional sources.