pigment

n. [ L. pigmentum, fr. the root of pingere to paint: cf. F. pigment. See Paint, and cf. Pimento, Orpiment. ] 1. Any material from which a dye, a paint, or the like, may be prepared; particularly, the refined and purified coloring matter ready for mixing with an appropriate vehicle. [ 1913 Webster ]

2. (Physiol.) Any one of the colored substances found in animal and vegetable tissues and fluids, as bilirubin, urobilin, chlorophyll, etc. [ 1913 Webster ]

3. Wine flavored with species and honey. Sir W. Scott. [ 1913 Webster ]

Pigment cell (Physiol.), a small cell containing coloring matter, as the pigmented epithelial cells of the choroid and iris, or the pigmented connective tissue cells in the skin of fishes, reptiles, etc. [ 1913 Webster ]

{ } a. Of or pertaining to pigments; furnished with pigments. Dunglison. [ 1913 Webster ]

Pigmentary degeneration (Med.), a morbid condition in which an undue amount of pigment is deposited in the tissues. [ 1913 Webster ]

n. (Physiol.) A deposition, esp. an excessive deposition, of coloring matter; as, pigmentation of the liver. [ 1913 Webster ]