potency

/ˈpoʊtənsi/
noun
  1. The power or strength of something, especially to produce an effect.
    • The potency of his argument convinced everyone in the room.
    • The potency of the medicine made the headache disappear quickly.
    • Farmers tested the potency of the fertilizer before using it on their crops.
  2. The ability of a male to have sex or reproduce.
    • Some medications may temporarily reduce potency.
    • The doctor discussed factors that can affect male potency.
    • He worried about his potency as he grew older.
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