American English

Definition of potency noun from the Oxford Advanced American Dictionary



    (pl. potencies) [uncountable, countable]
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  1. 1the power that someone or something has to affect your body or mind the potency of desire If you keep a medicine too long, it may lose its potency. a low-potency drug
  2. 2the ability of a man to have sex
See the Oxford Advanced Learner's Dictionary entry: potency