turndown

Folded or doubled down, wholly or partly. "A highly-developed Byronic turn-down collar." Kingsley: Two Years Ago , ch. i. turn-file, subst . A burnisher used in throwing up slight burs on the edges of the comb-maker's file, the teeth of which are originally made by the file and not by the chisel. Used by workers in horn, tortoiseshell, iron, and bone.