HIV

noun
\ ˌāch-ˌī-ˈvē How to pronounce HIV (audio) \

Definition of HIV

: either of two retroviruses that infect and destroy helper T cells of the immune system causing the marked reduction in their numbers that is diagnostic of AIDS

called also AIDS virus, human immunodeficiency virus

— compare hiv-1, hiv-2

Examples of HIV in a Sentence

The patient is HIV positive .

First Known Use of HIV

1986, in the meaning defined above

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Cite this Entry

“HIV.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/HIV. Accessed 23 Jul. 2021.

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More Definitions for HIV

HIV

noun

English Language Learners Definition of HIV

medicine : a virus that causes AIDS

HIV

noun
\ ˌāch-ˌī-ˈvē How to pronounce HIV (audio) \

Kids Definition of HIV

: a virus that causes AIDS by destroying large numbers of cells that help the human body fight infection

HIV

noun
\ ˌā-ˌchī-ˈvē How to pronounce HIV (audio) \

Medical Definition of HIV

: any of several retroviruses and especially HIV-1 that infect and destroy helper T cells of the immune system causing the marked reduction in their numbers that is diagnostic of AIDS

called also AIDS virus, human immunodeficiency virus

More from Merriam-Webster on HIV

Nglish: Translation of HIV for Spanish Speakers

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