bio·​de·​fense ˌbī-(ˌ)ō-di-ˈfen(t)s How to pronounce biodefense (audio)
often attributive
: the means or methods of preventing, detecting, or managing an attack involving biological weapons

Examples of biodefense in a Sentence

Recent Examples on the Web Ideas By Raj Panjabi June 11, 2024 3:58 PM EDT Dr. Raj Panjabi is former White House Senior Director for global health security and biodefense and on the faculty of Harvard Medical School and Brigham and Women’s Hospital. Raj Panjabi, TIME, 11 June 2024 Luciana Borio is an infectious disease physician, a senior fellow for global health at the Council on Foreign Relations, a venture partner at ARCH Venture Partners, and former director for medical and biodefense preparedness policy at the National Security Council. Luciana Borio and Phil Krause, STAT, 12 Apr. 2024 China’s struggles with lab safety carry danger of another pandemic Beijing has called for the United States to release more details of its own biodefense research and has echoed unproven claims made by Moscow that the Pentagon is financing biological weapons labs in Ukraine. Cate Cadell, Washington Post, 17 Aug. 2023 But time is running out for reauthorizing a law that created several of the federal government’s biodefense and pandemic-preparedness programs. John Wilkerson, STAT, 7 July 2023 See all Example Sentences for biodefense 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'biodefense.' 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

1977, in the meaning defined above

Time Traveler
The first known use of biodefense was in 1977

Dictionary Entries Near biodefense

Cite this Entry

“Biodefense.” Dictionary, Merriam-Webster, Accessed 24 Jul. 2024.

Medical Definition


bio·​de·​fense -di-ˈfen(t)s How to pronounce biodefense (audio)
: the means or methods of preventing, detecting, or managing an attack involving biological weapons
The National Institute of Allergy and Infectious Diseases money will continue to support research in biodefense and emerging infectious diseases throughout the Midwest.St. Louis Business Journal
often used before another noun
… funding for biodefense research and public-health preparedness has soared …Discover
Last Updated: - Updated example sentences
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