1. coloring substance: a substance that is added to give something such as paint or ink its color. Pigments are often available in the form of dry powders to be added to liquids.
2. natural coloring for tissue: a natural substance in plant or animal tissue that gives it its color
transitive verb (past and past participlepig·ment·ed, present participlepig·ment·ing, 3rd person present singularpig·ments)
Definition:
color something: to impart color to something
[Pre-12th century. < Latin pigmentum< pingere "to paint"]
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