D defs.my
Entry 2 senses Webster, 1913

Drumhead

/drŭm'-hĕdˌ/ · Drum·head · IPA /drˈʌmhˌɛd/
01 n. The parchment or skin stretched over one end of a drum.
  1. 1.
    The parchment or skin stretched over one end of a drum.
  2. 2.
    The top of a capstan which is pierced with sockets for levers used in turning it. See Illust. of Capstan. See: Capstan
Phrases & compounds
Drumhead court-martial — 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.