GNU Collaborative International Dictionary of English

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Found one definition

1.       
   Pigment , n. [L. pigmentum, fr. the root of pingere to paint: cf. F. pigment. See Paint, and cf. Pimento, Orpiment.]
   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
   (Physiol.) Any one of the colored substances found in animal and vegetable tissues and fluids, as bilirubin, urobilin, chlorophyll, etc.
   1913 Webster
   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