| n. | 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; |
| Noun | 1. | insulation - the state of being isolated or detached; "the insulation of England was preserved by the English Channel" |
| 2. | insulation - a material that reduces or prevents the transmission of heat or sound or electricity Synonyms: insulant, insulating material | |
| 3. | insulation - the act of protecting something by surrounding it with material that reduces or prevents the transmission of sound or heat or electricity |