Medical Dictionary

doctrine of signatures

noun doc·trine of signatures \ˈdäk-trən-\

Medical Definition of doctrine of signatures

  1. :  a theory in old natural philosophy: the outward appearance of a body signalizes its special properties (as of magic or healing virtue) and there is a relationship between the outward qualities of a medicinal object and the diseases against which it is effective

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a rounded knoll or a ridge of ice

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