(cardiology) An acute myocardial infarction, sometimes fatal, caused by the sudden occurrence of coronary thrombosis, which obstructs the blood supply to the heart and leads to necrosis of heart muscle tissue.

(aeronautics) The angle between the chord line of an airfoil and the airflow over it; one of the determiners of the amount of lift produced by an airfoil.

(computer security) An attempt to subvert security by recording legitimate communications and repeating them to try to impersonate a valid user.

(netball) A player allowed in the centre third, goal third including the shooting circle.

(netball) A player allowed in the centre third and goal third, but not the shooting circle.

plural of replay attack

plural of counter-attacker

Alternative spelling of counterattacker

(computing, Microsoft Windows) A means of bypassing security restrictions between processes in a session by having a less privileged process inject code into the message loop of a more privileged one.

plural of shatter attack