noun.
The act of impressing a mark upon something.—2. In coinage, the process of edge-rolling, or swaging the edge of the blank to prepare it for reeding.—3. A mark or series of marks upon something; characteristic arrangement of marks, as lines or dots, or of natural coloring: as, the markings on a bird's eggs, or of the petals of a flower; the natural markings of a gem or of ornamental wood.
Making a mark; hence, distinguishing; significant; striking.
Taking note; discerning; observant.