corresp. to Gr. χολο- combining form of χολή bile: used as first element in numerous technical words, some of which have variants in CHOLE-. Cholochrome [χρῶμα color], the general name for the coloring matters of bile; including chiefly Cholochloin or Cholochlorin, the green pigment, called also biliverdin, Cholocyanin, a blue pigment, Cholofulvin, a yellow pigment, Cholophæin, the brown pigment. Hence Cholochromic acid.
Cholography, a treatise on the bile. Chololith [λίθος stone], a gall-stone or biliary calculus. Chololithic a., of or pertaining to gall-stones. Cholology, the part of physiology and pathology that deals with the bile. Cholonic acid, produced by the action of strong acids upon glycocholic acid; its salts are Cholonates.
1863–72. Watts, Dict. Chem., I. 928. A dilute solution of cholochrome (either brown or green). Ibid., 937. Cholophæin, or the brown pigment … the substance to which excrements owe their colour…. Cholochloīn or Biliverdin, this green pigment is produced by the oxidation of cholophæin.
1872. Thudichum, Chem. Phys., 21. In disease of the bile in oxen the cholophæinate of lime predominates.
