abbreviation or noun

plural EUAs
: emergency use authorization
Though not fully approved by the Food and Drug Administration, all three vaccines have been given emergency use authorization (EUA) by the agency for distribution because of their ability to save lives during the pandemic.Isabella Murray
The FDA requires at least two months of data from at least half of the clinical trial participants before granting an EUA. The shots proved to be safe and effective at preventing severe illness and death from the coronavirus.Katie Camero
But now that N95 masks are more widely available, the FDA has revoked those EUAs [for KN95 masks] …Devon Kelley

Examples of EUA in a Sentence

Recent Examples on the Web This method was also used for the three COVID-19 vaccines that received approval or emergency use authorization (EUA) from the FDA. Michael Menna, Verywell Health, 19 Oct. 2023 Under the Public Health Service Act, any emergency use authorization (EUA) granted by the FDA was regarded as licensure for the duration of the public health emergency.4 Now that the public health emergency has ended, vaccines must have full use authorization in order to be covered. Louise Norris, Verywell Health, 17 June 2023 Earlier this year, the U.S. Food and Drug Administration granted emergency use authorization (EUA) for an over-the-counter combo Covid-flu test. Erica Sweeney, Men's Health, 13 May 2023 To be clear, a EUA doesn’t mean that the product hasn’t properly been tested. Bruce Y. Lee, Forbes, 4 May 2023 Ideally, a product with an EUA will go on to win full FDA approval by meeting the more time-consuming requirements. Melissa Healystaff Writer, Los Angeles Times, 14 Feb. 2023 The test was granted Emergency Use Authorization (EUA) from the U.S. Food and Drug Administration (FDA) on October 28, 2021, Detect said. Saleen Martin, USA TODAY, 14 Dec. 2022 Navarro suggested that Hatfill should write the request for a new EUA for hydroxychloroquine and have O'Neill submit it on behalf of Henry Ford Health. Kristen Jordan Shamus, Detroit Free Press, 24 Aug. 2022 In order for the FDA to issue an EUA, the secretary of HHS must first declare an emergency, under Section 564 of the Federal Food, Drug, and Cosmetic Act. Tanya Lewis, Scientific American, 29 July 2022

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

Word History

First Known Use

2004, in the meaning defined above

Time Traveler
The first known use of EUA was in 2004

Dictionary Entries Near EUA

Cite this Entry

“EUA.” Dictionary, Merriam-Webster, Accessed 12 Apr. 2024.

Medical Definition


abbreviation or noun
: emergency use authorization
An EUA allows use of unapproved medical products (or unapproved uses of approved medical products) to diagnose, treat, or prevent serious or life-threatening diseases or conditions caused by threat agents, such as Covid-19, in response to a declared public health emergency for which there are no adequate, approved, and available alternatives.Philip R. Krause and Marion F. Gruber, The New England Journal of Medicine
The FDA's first EUAs for civilians were in 2009, during the H1N1 (swine flu) pandemic, authorizing two previously approved medications—Tamiflu and Relenza—and a new drug …Diana M. Zuckerman, American Journal of Public Health
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