1. human immunodeficiency virus.See under AIDS virus.


  1. a variable retrovirus that invades and inactivates helper T cells of the immune system and is a cause of AIDS and AIDS-related complex: variants were identified in several laboratories and independently named lymphadenopathy-associated virus (LAV), human T-cell lymphotropic virus type 3 (HTLV-3), and AIDS-related virus (ARV), the name human immunodeficiency virus (HIV) being subsequently proposed by an international taxonomy committee.

abbreviation for

  1. human immunodeficiency virus; the cause of AIDS. Two strains have been identified: HIV-1 and HIV-2

1986, initialism from human immunodeficiency virus, name for either of the two viruses that cause AIDS.


  1. Human immunodeficiency virus; a retrovirus that causes AIDS by infecting helper T cells of the immune system. The most common serotype, HIV-1, is distributed worldwide, while HIV-2 is primarily confined to West Africa.AIDS virus human T-cell leukemia virus type III human T-cell lymphotrophic virus type III lymphadenopathy-associated virus

  1. Short for human immunodeficiency virus. Any of various strains of a retrovirus of the genus Lentivirus that cause AIDS by infecting the body’s immune system.

An abbreviation for human immunodeficiency virus, the virus that causes AIDS.

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