1.
Potency is the power and influence that a person, action, or idea has to affect or change people’s lives, feelings, or beliefs.
They testify to the extraordinary ~ of his personality...
= power
N-UNCOUNT: usu with supp
2.
The ~ of a drug, poison, or other chemical is its strength.
Sunscreen can lose its ~ if left over winter in the bathroom cabinet.
N-UNCOUNT: usu with poss
3.
Potency is the ability of a man to have sex.
Alcohol abuse in men can cause loss of sex drive and reduced ~.
N-UNCOUNT