1A unit of weight formerly used by apothecaries, equivalent to 60 grains or one eighth of an ounce.
- 1.1A liquid measure formerly used by apothecaries, equivalent to 60 minims or one eighth of a fluid ounce.
2An ancient silver coin based on the Attic or Hellenistic drachma.
- ‘Historical documents show that Chinese emperor Wudi was impressed with the solidus, as well as the silver drachm of Sasanian Persia, the standard currency along the Silk Road.’
Late Middle English (denoting the ancient Greek drachma): from Old French dragme or late Latin dragma, via Latin from Greek drakhmē (see drachma).