[CURLING vbl. sb.1] An iron instrument for curling the hair, which is heated and the hair then twined round it.
1632. Sherwood, Eng.-Fr. Dict., A curling iron, fer à frisotter.
1752. Richardson, Lett., in Mrs. Barbauld, Life (1804), III. 34. That careless girl set herself in a blaze with her torturing curling irons.
1844. Dickens, Mart. Chuz., xxxviii. A small fire for the convenience of heating curling-irons.