(uncountable) The state or quality of being aggressive. / (uncountable) The propensity of a soil or water to dissolve metal or cement structures. / (countable) The result or product of being aggressive.

plural of aggressiveness

plural of aggressivity

(geology) The acidic ability of water (when it contains dissolved carbon dioxide) to dissolve calcium carbonate from rocks.

(international law) A military conflict waged without the justification of self-defense, usually for territorial gain and subjugation.

passive-aggressive behaviour

plural of war of aggression

Synonym of non-aggression principle

(ethics, philosophy) The ethical principle asserting that initiating physical force against persons or their justly acquired property, or threatening to do so, is illegitimate.

(Southern US, uncommon) The American Civil War of 1861 to 1865.