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Showing results for efficacy. Search instead for eficaz.
Definitions

efficacy

[ef-i-kuh-see] / ˈɛf ɪ kə si /


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.

"Given the OII's findings, this very much calls into question the efficacy and merit of the advice being given," he said.

From BBC • Apr. 29, 2026

“There are scientific studies on the efficacy of different types of work that are adjacent to, or similar to what I do, but nothing exact.”

From Los Angeles Times • Apr. 22, 2026

Regulators may soon lift restrictions on making the compounds despite scant evidence of their safety or efficacy.

From The Wall Street Journal • Apr. 20, 2026

Eli Lilly’s LLY -1.89%decrease; red down pointing triangle late-stage study of the efficacy and safety of a treatment for type 2 diabetes has produced positive results.

From The Wall Street Journal • Apr. 16, 2026

But questions about the painlessness and efficacy of lethal injection were emerging.

From "Just Mercy" by Bryan Stevenson




Vocabulary lists containing efficacy