Source : Webster's Revised Unabridged Dictionary (1913)

Cholesterin \Cho*les"ter*in\, n. [Gr. ? bile + ? stiff fat: F.
   cholest['e]rine. See {Stearin}.] (Chem.)
   A white, fatty, crystalline substance, tasteless and
   odorless, found in animal and plant products and tissue, and
   especially in nerve tissue, in the bile, and in gallstones.

Source : WordNet®

cholesterin
     n : an animal sterol that is normally synthesized by the liver;
         the most abundant steroid in animal tissues [syn: {cholesterol}]