(pharmacology) An anti-inflammatory drug used to treat rheumatoid arthritis.

plural of hive of activity

(idiomatic) A very busy place.

(military, Britain, Canada) The positions or activity assumed by the crew of a warship immediately in advance of combat or other hostile action; general quarters; also, the signal given to indicate such imminent action.

plural of active front

plural of action man

Action démocratique du Québec

plural of industrial action

plural of pump action

a type of firearm action which uses a lever located around the trigger guard area, to load fresh cartridges into the chamber when the lever is worked.