I. ˌcourt-ˈmartial 1 / $ ˈ. ˌ../ BrE AmE noun
[uncountable and countable] a court that judges soldiers etc who may have broken military law, or an occasion when this judgment is made:
Navy commanders recommended that he be tried by court-martial.
II. court-martial 2 BrE AmE verb ( past tense and past participle court-martialled , present participle court-martialling British English , court-martialed , court-martialing American English ) [transitive]
to hear and judge someone’s case in a military court:
The drill instructor was court-martialled for having sex with a trainee.