from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Operculina turpethum, a plant in the morning glory family.
  • n. A heavy yellow powder with chemical formula Hg3O2SO4.

from the GNU version of the Collaborative International Dictionary of English

  • n. The root of Ipomœa Turpethum, a plant of Ceylon, Malabar, and Australia, formerly used in medicine as a purgative; -- sometimes called vegetable turpeth.
  • n. A heavy yellow powder, Hg3O2SO4, which consists of a basic mercuric sulphate; -- called also turpeth mineral.

from The Century Dictionary and Cyclopedia

  • n. The root of Ipomæa (Convolvulus) Turpethum, a plant of Ceylon, Malabar, and Australia, which has a cathartic property. (See Indian jalap, under jalap.) It is sometimes called vegetable turpeth to distinguish it from mineral turpeth.
  • n. Turpeth-mineral.—


Ultimately from Persian. (Wiktionary)



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