A brown pigment or compound derived from bile or biliary substances.
From Greek 'chole' (bile) + 'phaios' (dusky brown). This biochemistry term names a specific brownish pigment found in bile and feces.
The discovery of cholophaein helped scientists understand the color transformation of bile from yellow-green as it moves through your digestive system to brown in your stool—it's literally the pigment that gives poop its characteristic color!
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