The process which causes an infarct.
An infarct (an area of ischemic necrosis).
A period of struggle or difficulty, especially from illness.
A prolonged military assault or a blockade of a city or fortress with the intent of conquering by force or attrition.
A prolonged assault or attack.
The seat of a heron while looking out for prey.
A flock of heron.
To assault or blockade a city or fortress with the intent of conquering by force or attrition; to besiege.