Pronunciation: (zhän'därm; Fr. zhän-darm'),[key] —n., —pl.-darmesPronunciation: (-därmz; Fr. -darm').[key] 1. a police officer in any of several European countries, esp. a French police officer.
2. a soldier, esp. in France, serving in an army group acting as armed police with authority over civilians.
3. (formerly) a cavalryman in charge of a French cavalry squad.