marking - a pattern of marks

speck, pinpoint - a very small spot; "the plane was just a speck in the sky"

nebula - (pathology) a faint cloudy spot on the cornea

worn spot, fret - a spot that has been worn away by abrasion or erosion

plaque - (pathology) a small abnormal patch on or inside the body

macule, macula - a patch of skin that is discolored but not usually elevated; caused by various diseases

spot - mark with a spot or spots so as to allow easy recognition; "spot the areas that one should clearly identify"

harlequin - variegate with spots or marks; "His face was harlequined with patches"

speckle, stipple - produce a mottled effect; "The sunlight stippled the trees"