• Webster's Revised Unabridged Dictionary
    • Turpeth (Chem) A heavy yellow powder, Hg3O2SO4, which consists of a basic mercuric sulphate; -- called also turpeth mineral.
    • Turpeth (Bot) The root of Ipomœa Turpethum, a plant of Ceylon, Malabar, and Australia, formerly used in medicine as a purgative; -- sometimes called vegetable turpeth.
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Century Dictionary and Cyclopedia
    • n turpeth 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 Turpeth-mineral.—
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Chambers's Twentieth Century Dictionary
    • n Turpeth tur′peth the root of Ipomœa (Convolvulus) Turpethum, a Ceylon plant of cathartic properties
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Webster's Revised Unabridged Dictionary
NL. turpethum, fr. Per. tirbid, a cathartic, turbad, a purgative root. Cf. Turbith


In literature:

Turpeth mineral, v. 2.
"Zoonomia, Vol. II" by Erasmus Darwin
Calomel, six or eight grains; or, in an obstinate case, Turpeth Mineral or Yellow Mercury, six to twelve grains in a bolus.
"The Dog" by Dinks, Mayhew, and Hutchinson
Turpeth mineral acts promptly and satisfactorily.
"A System of Practical Medicine by American Authors, Vol. I" by Various