noun.
An area of tissue that undergoes necrosis as a result of obstruction of local blood supply, as by a thrombus or embolus.
The Century Dictionary and Cyclopedia
noun.
In pathology, that which stuffs; the substance of an infarction.
the GNU version of the Collaborative International Dictionary of English
noun.
An obstruction or embolus in one of the blood vessels.
noun.
The morbid condition of a limited area resulting from such obstruction; also, the localized necrotic (dead) tissue resulting from such obstruction.