D defs.my
Entry 1 sense Webster, 1913

Marking

/mär'-kĭng/ · Mark·ing · IPA /ˈmɑɹkɪŋ/
01 n. The act of one who, or that which, marks; the mark or marks made; arrangement or disposition of marks or coloring; as, the marking of a bir…
  1. 1.
    The act of one who, or that which, marks; the mark or marks made; arrangement or disposition of marks or coloring; as, the marking of a bird's plumage.
Phrases & compounds
Marking ink — indelible ink, because used in marking linen.
Marking nut — the nut of the Semecarpus Anacardium, an East Indian tree. The shell of the nut yields a blackish resinous juice used for marking cotton cloth, and an oil prepared from it is used for rheumatism.