Source : Webster's Revised Unabridged Dictionary (1913)

Infarction \In*farc"tion\, n. [See {Infarce}.]
   The act of stuffing or filling; an overloading and
   obstruction of any organ or vessel of the body; constipation.

Source : WordNet®

infarction
     n : localized necrosis resulting from obstruction of the blood
         supply [syn: {infarct}]