Emily Dickinson Lexicon

SIM'PLE, n.

Something not mixed or compounded. In the materia medica, the general denomination of an herb or plant, as each vegetable is supposed to possess its particular virtue, and therefore to constitute a simple remedy. Simple, when applied to minerals and rocks, has reference to their homogeneousness, and not to the number of elements which enter into their composition. – Encyc. Dryden.