Serolin \Ser"o*lin\, n. [Serum + L. oleum oil.] (Physiol. Chem.)
(a) A peculiar fatty substance found in the blood, probably a
mixture of fats, cholesterin, etc.
(b) A body found in fecal matter and thought to be formed in
the intestines from the cholesterin of the bile; --
called also {stercorin}, and {stercolin}.
[1913 Webster] Seron