#1 insulation n. [insularity, insularism, detachment] the state of being isolated or detached; "the insulation of England was preserved by the English Channel". wn
#2 insulation n. [insulating material, insulant] a material that reduces or prevents the transmission of heat or sound or electricity. wn
#3 insulation n. the act of protecting something by surrounding it with material that reduces or prevents the transmission of sound or heat or electricity. wn
vizzz