(1):

(p. a.) Separated from other bodies by means of nonconductors of heat or electricity.

(2):

(p. a.) Standing by itself; not being contiguous to other bodies; separated; unconnected; isolated; as, an insulated house or column.

(3):

(p. a.) Situated at so great a distance as to be beyond the effect of gravitation; - said of stars supposed to be so far apart that the affect of their mutual attraction is insensible.

(4):

(imp. & p. p.) of Insulate