D defs.my
Entry 2 senses Webster, 1913

Edging

/ĕj'-ĭng/ · Edg·ing · IPA /ˈɛd͡ʒ.ɪŋ/
01 n. That which forms an edge or border, as the fringe, trimming, etc., of a garment, or a border in a garden.
  1. 1.
    That which forms an edge or border, as the fringe, trimming, etc., of a garment, or a border in a garden.
  2. 2.
    The operation of shaping or dressing the edge of anything, as of a piece of metal.
Phrases & compounds
Edging machine — a machine tool with a revolving cutter, for dressing edges, as of boards, or metal plates, to a pattern or templet.