Meaning of AIDS in English

AIDS

n.

Pronunciation: ' ā dz

Function: noun

Etymology: a cquired i mmuno d eficiency s yndrome

Date: 1982

: a disease of the human immune system that is characterized cytologically especially by reduction in the numbers of CD4-bearing helper T cells to 20 percent or less of normal thereby rendering the subject highly vulnerable to life-threatening conditions (as Pneumocystis carinii pneumonia) and to some (as Kaposi's sarcoma) that become life-threatening and that is caused by infection with HIV commonly transmitted in infected blood especially during illicit intravenous drug use and in bodily secretions (as semen) during sexual intercourse

Merriam Webster Collegiate English Dictionary.      Merriam Webster - Энциклопедический словарь английского языка.