SIV

noun

ˌes-ˌī-ˈvē

: a retrovirus (Lentivirus simimdef) that causes a disease in monkeys similar to AIDS and that is closely related to HIV-2 of humans

called also simian immunodeficiency virus

Examples of SIV in a Sentence

Recent Examples on the Web

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One of the longstanding pathways had been the SIV program, which was established in 2009 to allow Afghans who closely supported the war effort to apply for entry into America with their families. — Tess Kenny, Chicago Tribune, 21 June 2026 Our team tested this theory by giving rhesus macaque monkeys infected with SIV – a version of HIV that infects nonhuman primates – a multiple sclerosis drug that targets integrins. — Smita S. Iyer, The Conversation, 8 June 2026 The university uses primates to research HIV/SIV, Zika virus, aging and Alzheimer’s disease and respiratory diseases, according to Fell. — Corey Schmidt, Sacbee.com, 7 May 2026 At $650, the bag positions SIV firmly in the luxury space, a bold move for a relaunch. — Mecca Pryor, Essence, 22 Dec. 2025 See All Example Sentences for SIV

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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Siuslaw

SIV

Siva

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Style

“SIV.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/SIV. Accessed 15 Jul. 2026.

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Medical Definition

SIV

noun

ˌes-ˌī-ˈvē

: a retrovirus (Lentivirus simimdef) that causes a disease in monkeys similar to AIDS and that is closely related to HIV-2 of humans

called also simian immunodeficiency virus

SIV

noun

Examples of SIV in a Sentence

Word History

Browse Nearby Words

Cite this Entry

Medical Definition

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