How to Use efficacy in a Sentence

efficacy

noun
  • As of now, the efficacy of this system has not been established.
    New Atlas, 4 Oct. 2024
  • Stop smoking, which promotes bleeding and may also reduce the efficacy of treatment.
    Steffini Stalos, Verywell Health, 3 Oct. 2024
  • The efficacy is important, but there's other elements to it.
    Celia Shatzman, Forbes, 8 Oct. 2024
  • This type of programming influences life and work skills and is part of the collective efficacy that exists across the entire district.
    Madeleine Parrish, The Arizona Republic, 8 Oct. 2024
  • Binney projects efficacy results will be available in late 2026.
    Aaron Weitzman, Axios, 9 Oct. 2024
  • But, one product stands out among the rest in terms of efficacy, convenience, and portability: The Calming Tincture.
    Dallas News, 23 Nov. 2022
  • The dodgy data seem to have no bearing on the safety or efficacy of the drug.
    The Economist, 28 Nov. 2019
  • While efficacy may still be up in the air, safety isn't.
    Adrianna Rodriguez, USA TODAY, 8 June 2020
  • Also, the efficacy of the short-yardage running game is very much in doubt.
    oregonlive, 11 May 2021
  • My thoughts haven’t changed about the efficacy of the Electoral College.
    AJC.com, 11 Dec. 2016
  • If some customers were turned off by the sneaky charges, far more were turned on by Stiff Nights’ efficacy.
    Matthew Hongoltz-Hetling, The New Republic, 23 June 2021
  • But the numbers depend in part on the efficacy of the vaccines that are ready for use soonest.
    The Economist, 7 Oct. 2020
  • In at least a few cases, efficacy might even be beside the point.
    J.c. Pan, The New Republic, 4 Aug. 2020
  • This is a very new diet, so the research is out on its efficacy.
    Karla Walsh, Woman's Day, 21 Dec. 2020
  • Ask what a treatment plan would look like, and how and when the two of you would evaluate its efficacy.
    Terri Taylor, Wired, 29 Jan. 2021
  • This serum is a standout for its price point and efficacy.
    Perrie Samotin, Glamour, 29 Mar. 2024
  • The Veet Spray on Cream is our top pick for the best spray hair removal cream for its convenience and efficacy.
    Jessie Quinn, Peoplemag, 2 Jan. 2024
  • Whether the same efficacy holds for children remains to be seen.
    Wesley Kufel, The Conversation, 8 Dec. 2020
  • Searches were up at the start of the year as news emerged about the various vaccines and their levels of efficacy.
    Washington Post, 29 Nov. 2021
  • But the efficacy of the voluntary pledge remains to be seen.
    Eric Geller, WIRED, 1 May 2024
  • But evaluating the safety and efficacy of drugs is the job of the FDA, not Medicare.
    The Editorial Board, WSJ, 2 Mar. 2023
  • Since the drug is still being researched, that means all the data on its safety and efficacy isn’t in yet.
    Syeda Khaula Saad, Verywell Health, 2 Apr. 2024
  • If the safety and efficacy is there, the factory piece is being done.
    Cnn Staff, CNN, 30 June 2020
  • The bride and groom are often able to take the reins, so coercion is lower and efficacy, higher.
    Ananya Bhattacharya, Quartz India, 27 Nov. 2019
  • Will my NorCal twitter troll have the courage and efficacy to become my dem whip??
    Reese Gorman, Washington Examiner, 11 Sep. 2023
  • But all of that efficacy hasn't translated into the kinds of sales investors once hoped for.
    Sy Mukherjee, Fortune, 25 Nov. 2019
  • Pfizer is still likely to be the first out of the gate with interim results on efficacy.
    Sarah Zhang, The Atlantic, 19 Oct. 2020
  • Using the right tools for the job can also boost the efficacy of natural cleaners.
    Jolie Kerr, CNN Underscored, 9 Sep. 2020
  • Mukherjea said the timing of the doses could have an effect on efficacy.
    Kellie Hwang, San Francisco Chronicle, 24 Sep. 2021
  • And while the vaccines are very protective, their efficacy wanes over time.
    Josh Fischman, Scientific American, 13 June 2022

Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'efficacy.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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