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.

Noun

The process of keeping (something or someone) safe.

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*:But then I had the flintlock by me for protection . ¶ There were giants in the days when that gun was made; for surely no modern mortal could have held that mass of metal steady to his shoulder. The linen-press and a chest on the top of it formed, however, a very good gun-carriage; and, thus mounted, aim could be taken out of the window.

The state of being safe.

A means of keeping or remaining safe.

A means, such as a condom, of preventing pregnancy or sexually transmitted disease.

(lb) Coverage.

Immunity from harm obtained by illegal payments, as bribery or extortion.

(lb) Restrictions on foreign competitors which limit their ability to compete with domestic producers of goods or services.

(lb) An instance of a security token associated with a resource (such as a file).