dover : Idioms & Phrases
dover's powder
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noun a medicinal powder made essentially of ipecac and opium; formerly used to relieve pain and induce perspiration
WordNet
Do"ver's Pow"der
Etymology
From Dr.Definitions
(Med.) A powder of ipecac and opium, compounded, in the United States, with sugar of milk, but in England (as formerly in the United States) with sulphate of potash, and in France (as in Dr. Dover's original prescription) with nitrate and sulphate of potash and licorice. It is an anodyne diaphoretic.
Webster 1913
strait of dover
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noun the strait between the English Channel and the North Sea; shortest distance between England and the European continent
Strait of Calais; Pas de Calais.