from
The Collaborative International Dictionary of English v.0.48
Pigment \Pig"ment\, 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.
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3. Wine flavored with species and honey. --Sir W. Scott.
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{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] Pigmental