(physics, chemistry) Harmful changes in the properties of materials caused by interactions with ionizing radiation.

(law) Damages that can be quantified precisely, including such things as plaintiff's medical expenses, lost wages, and similar out-of-pocket costs (as contrasted with general damages, such as pain and suffering, which must be estimated).

The harm has occurred, and nothing can be done to prevent it now; it might have been preventable, but cannot be prevented retroactively.

(nautical) A department or group, as aboard a naval vessel, responsible for taking action to control damage caused by fire, collision, etc.

(military, euphemistic) Damage to civilian property or civilian casualties that are the unintended result of military operations. / Harm to innocent people that results from policy decisions.

plural of stage damager

(slang, humorous) stage manager

plural of collateral damage

(law) The doing of damage; in particular, the doing by animals such as cattle of damage by trespassing.

plural of brain damage