【法】 战地临时军事法庭

[ noun ]
a military court convened to hear urgent charges of offenses committed in action
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Drumhead \Drum"head`\, n.
1. The parchment or skin stretched over one end of a drum.

2. The top of a capstan which is pierced with sockets for
levers used in turning it. See Illust. of {Capstan}.

{Drumhead court-martial} (Mil.), a summary court-martial
called to try offenses on the battlefield or the line of
march, when, sometimes, a drumhead has to do service as a
writing table.