potency

noun

po·​ten·​cy ˈpō-tᵊn(t)-sē 

plural potencies

1

a

: force, power

b

: the quality or state of being potent

c

: the ability or capacity to achieve or bring about a particular result

2

: potentiality sense 1

Synonyms

• power
• strength
• energy
• muscle
• capacity

Examples of potency in a Sentence

The potency of her words changed many minds in the audience that night.

Any vitamin of high potency should only be taken in the proper dosage.

Recent Examples on the Web

Unlike alcohol's standardized ABV (alcohol by volume) THC potency varies widely which makes dosing unpredictable. —Amy Brightfield, Better Homes & Gardens, 23 Sep. 2025

On the other hand, storing medications in hot or humid spaces may cause potency to decrease faster. —Ashley Wong, Health, 19 Sep. 2025

That list was all about stability, potency, and usability. —Adam Hurly, Robb Report, 18 Sep. 2025

Which is really alarming, because fentanyl is such a high-potency drug. —Kansas City Star, 18 Sep. 2025

Word History

First Known Use

15th century, in the meaning defined at sense 1a

Kids Definition

potency

noun

po·​ten·​cy ˈpōt-ᵊn-sē 

plural potencies

: the quality or state of being potent

vitamins of high potency

especially : power to bring about a certain result

Medical Definition

potency

noun

po·​ten·​cy ˈpōt-ᵊn-sē 

plural potencies

: the quality or state of being potent: as

a

: chemical or medicinal strength or efficacy

a drug's potency

b

: the ability to copulate

—usually used of the male

c

: initial inherent capacity for development of a particular kind

cells with a potency for eye formation