'Marking nut' definitions:

Definition of 'Marking nut'

From: GCIDE
  • Marking \Mark"ing\, 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 bird's plumage. [1913 Webster]
  • Marking ink, indelible ink, because used in marking linen.
  • Marking nut (Bot.), 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. [1913 Webster]