(law) A plea to the effect that from some formal defect (e.g. misnomer, lack of jurisdiction) the proceedings should be abated.

(academy) The final step in earning a doctorate: an oral examination in which the doctorand publicly defends his/her thesis to the examiners.

(US, law) A legal defense in which the defendant claims to have committed a crime in the belief that he/she was not in the real world, but in a simulated reality.

plural of affirmative defense

(video games) A style of real-time strategy video game in which the player attempts to stop enemies from crossing a map by building traps to slow them down and towers or turrets which shoot at them as they pass within range.

(law) A defense against a suit or criminal charge that asserts mitigating facts rather than contesting the main fact of the allegation.

Efforts to protect the citizens of a state from military attack.

plural of thesis defense

plural of Pac-Man defense

(informal, law) A claim of self-defence against an unwanted homosexual advance.