What is "well-marked"

Usage examples of "well-marked".

If she has a broad face and square brow, well-marked eyebrows and curly dark hair, a certain expression of amusement in her glance which her mouth keeps the secret of, and for the rest features entirely insignificant-- take that ordinary but not disagreeable person for a portrait of Mary Garth.

When a dotted line reaches one of the horizontal lines, and is there marked by a small numbered letter, a sufficient amount of variation is supposed to have been accumulated to have formed a fairly well-marked variety, such as would be thought worthy of record in a systematic work.

Winter, in coming to the country hereabout, advanced in well-marked stages, wherein might have been successively observed the retreat of the snakes, the transformation of the ferns, the filling of the pools, a rising of fogs, the embrowning by frost, the collapse of the fungi, and an obliteration by snow.

I was surprised to find but few cases of malarial fever, and no well-marked cases either of typhus or typhoid fever.

Hence it is the most flourishing, or, as they may be called, the dominant species, -- those which range widely over the world, are the most diffused in their own country, and are the most numerous in individuals, -- which oftenest produce well-marked varieties, or, as I consider them, incipient species.

There was a canyon with a good spring of water cut round by well-marked game trails.