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Pronunciation:  `insu'leyshun

WordNet Dictionary
  1. [n]  the act of protecting something by surrounding it with material that reduces or prevents the transmission of sound or heat or electricity
  2. [n]  the state of being isolated or detached; "the insulation of England was preserved by the English Channel"
  3. [n]  a material that reduces or prevents the transmission of heat or sound or electricity

INSULATION is a 10 letter word that starts with I.


 Synonyms: detachment, insulant, insularism, insularity, insulating material
 See Also: building material, isolation, lagging, lining, protection



Webster's 1913 Dictionary
  1. \In`su*la"tion\, 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
  2. \In`su*la"tion\, n.
    The material or substance used in insulating.
Thesaurus Terms
 Related Terms: aegis, alien, apartheid, buffer, bulwark, bumper, color bar, contraceptive, copyright, crash helmet, cushion, dashboard, division, dodger, ethnocentrism, exclusiveness, face mask, fender, finger guard, foot guard, foreigner, fuse, goggles, governor, guard, guardrail, hand guard, handrail, hard hat, helmet, insularity, interlock, isolation, Jim Crow, knee guard, know-nothingism, knuckle guard, laminated glass, life preserver, lifeline, lightning conductor, lightning rod, mask, mudguard, narrowness, nose guard, outcast, out-group, outsider, pad, padding, palladium, parochialism, patent, persona non grata, pilot, preventive, prophylactic, protective clothing, protective umbrella, quarantine, race hatred, racial segregation, safeguard, safety, safety glass, safety plug, safety rail, safety shoes, safety switch, safety valve, screen, seat belt, seclusion, segregation, separation, shield, shin guard, snobbishness, stranger, sun helmet, tightness, umbrella, windscreen, windshield, xenophobia