SIMPLE (2)

simple (2). Simple, n. a single ingredient, herb, plant, drug

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Sim″ple (?), n. [[F. See Simple, a.]] 1. 1. Something not mixed or compounded. “Compounded of many simples.” Shak.
2. 2. (Med.) A medicinal plant; — so called because each vegetable was supposed to possess its particular virtue, and therefore to constitute a simple remedy.
What virtue is in this remedy lies in the naked simple itself as it comes over from the Indies. Sir W. Temple. 3. 3. (Weaving) (a) A drawloom. (b) A part of the apparatus for raising the heddles of a drawloom.
4. 4. (R. C. Ch.) A feast which is not a double or a semidouble.