pigment
[pig´ment] 1. any coloring matter of the body.
2. a stain or dyestuff.
3. a paintlike medicinal preparation applied to the skin. adj., adj pig´mentary.
lipid pigment any of various pigments having lipid characteristics, some of which also contain protein or iron, the most important one being
lipofuscin.
respiratory p's substances, e.g., hemoglobin, myoglobin, or cytochromes, which take part in the oxidative processes of the animal body.
retinal p's the photopigments in retinal rods and cones that respond to certain colors of light and initiate the process of vision.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.