Medical Dictionary
doctrine of signatures
noun doc·trine of signatures \ˈdäk-trən-\
Medical Definition of DOCTRINE OF SIGNATURES
: 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
Seen & Heard
What made you want to look up doctrine of signatures? Please tell us where you read or heard it (including the quote, if possible).