in·su·la·tion /ˌɪn(t)səˈleʃən/ 名詞
1. The act of insulating, or the state of being insulated; detachment from other objects; isolation.
2. Elec. & Thermotics The act of separating a body from others by nonconductors, so as to prevent the transfer of electricity or of heat; also, the state of a body so separated.
3. The material or substance used to insulate from either electrical or thermal conduction; as, fiberglass is used as thermal insulation in the walls and roofs of houses.
n 1: the state of being isolated or detached; "the insulation of
England was preserved by the English Channel" [syn: insularity,
2: a material that reduces or prevents the transmission of heat
or sound or electricity [syn: insulating material, insulant]
3: the act of protecting something by surrounding it with
material that reduces or prevents the transmission of
sound or heat or electricity