efficacy

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

New research by the Protest Project, led by sociologists Dana Fisher and Arman Azedi, suggests that No Kings is having a positive effect on encouraging political engagement, efficacy and momentum among participants.

From Salon • Apr. 4, 2026

An investigation by the Australian Broadcasting Corporation also alleged issues with a leading laboratory which test sunscreen efficacy and a manufacturer which made a common base formula.

From BBC • Mar. 26, 2026

Freymann, a fellow at Stanford University’s Hoover Institution, argues that the historical U.S. playbook for the Asia-Pacific is losing its efficacy.

From The Wall Street Journal • Mar. 24, 2026

The companies said a Phase 3 study of its Lyme disease vaccine candidate demonstrated more than 70% efficacy in preventing Lyme disease in those 5 and older.

From MarketWatch • Mar. 23, 2026

The meeting’s topic was the efficacy of radiation for medical treatments of all kinds, but the impression made on Ernest and John was very different.

From "Big Science" by Michael Hiltzik