: a lentivirus (species Simian immunodeficiency virus) that causes a disease in monkeys similar to AIDS and that is closely related to HIV-2

Examples of SIV in a Sentence

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Together the measures have affected roughly 45,000 SIV applicants ready to fly out of Afghanistan and at least 15,000 qualified refugees, according to the coalition #AfghanEvac. Bloomberg Opinion, Twin Cities, 21 Feb. 2025 For reactive skin, microbiome-supportive formulas like SIV Biome Support Serum or Biojuve Living Biome Essentials Duo can help to bolster skin resiliency from the bacterial level. Jessica Ourisman, Forbes, 18 Jan. 2025

Word History

First Known Use

1987, in the meaning defined above

Time Traveler
The first known use of SIV was in 1987

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Cite this Entry

“SIV.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/SIV. Accessed 3 Apr. 2025.

Medical Definition

: a retrovirus of the genus Lentivirus (species Simian immunodeficiency virus) that causes a disease in monkeys similar to AIDS and that is closely related to HIV-2 of humans

called also simian immunodeficiency virus

Last Updated: - Updated example sentences
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