Source : Webster's Revised Unabridged Dictionary (1913)

Lardacein \Lar`da*ce"in\, n. [See {Lardaceous}.] (Physiol.
   Chem.)
   A peculiar amyloid substance, colored blue by iodine and
   sulphuric acid, occurring mainly as an abnormal infiltration
   into the spleen, liver, etc.