CHROMOPHANE n.
A general name for the several coloring matters, red, green, yellow, etc., present in the inner segments in the cones of the retina, held in solution by fats, and slowly decolorized by light; distinct from the photochemical pigments of the rods of the retina.
CHRYSOPHANIC a.
Pertaining to, or derived from, or resembling, chrysophane. Chrysophanic acid (Chem.), a yellow crystalline substance extracted from rhubarb, yellow dock, sienna, chrysarobin, etc., and shown to be a derivative of an anthracene. It is used in the treatment of skin diseases; -- called also rhein, rheic acid, rhubarbarin…
COUCHANT a. 2 definitions
Lying down with the head raised, which distinguishes the posture of couchant from that of dormant, or sleeping; -- said of a lion or other beast. Couchant and levant (Law), rising up and lying down; -- said of beasts, and indicating that they have been long enough on land, not belonging to their owner, to lie down and…