: 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 (such as Pneumocystis carinii pneumonia) and to some (such 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 (such as semen) during sexual intercourse
Examples of AIDS in a Sentence
Recent Examples on the Web
In the 80s, amid the growing AIDS epidemic, President Ronald Reagan told reporters that gay men were a threat to the general population.
—
Swapna Venugopal Ramaswamy, USA Today, 6 June 2025
These stickers claimed that the manufacturer was responsible for the deaths of AIDS patients due to the high price of AZT, the only drug approved at the time or treating HIV/AIDS.
—Patrick Salland, Kansas City Star, 5 June 2025
And the world is no longer on track to meet critical 2030 AIDS targets.
—Jennifer Lotito, Forbes.com, 5 June 2025
This year, the organization will honor actor Colman Domingo, costume designer Paul Tazewell, choreographer Sean Bankhead, multidisciplinary artist Derrick Adams, National Black Justice Coalition CEO and executive director Dr. David J. Johns and founder of the Black AIDS Institute Phill Wilson.
—Brande Victorian, HollywoodReporter, 5 June 2025
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Swapna Venugopal Ramaswamy, USA Today, 6 June 2025
These stickers claimed that the manufacturer was responsible for the deaths of AIDS patients due to the high price of AZT, the only drug approved at the time or treating HIV/AIDS.
—Patrick Salland, Kansas City Star, 5 June 2025
And the world is no longer on track to meet critical 2030 AIDS targets.
—Jennifer Lotito, Forbes.com, 5 June 2025
This year, the organization will honor actor Colman Domingo, costume designer Paul Tazewell, choreographer Sean Bankhead, multidisciplinary artist Derrick Adams, National Black Justice Coalition CEO and executive director Dr. David J. Johns and founder of the Black AIDS Institute Phill Wilson.
—Brande Victorian, HollywoodReporter, 5 June 2025
See All Example Sentences for AIDS
Cite this Entry
“AIDS.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/AIDS. Accessed 14 Jun. 2025.
Copy CitationKids Definition
AIDS
noun
: a serious disease of the human immune system marked by destruction of a large proportion of the helper T cells in the body due to infection by the HIV virus commonly transmitted especially in blood and semen
Medical Definition
AIDS
noun
: a disease of the human immune system that is characterized cytologically especially by a 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 that become life threatening (as Kaposi's sarcoma) 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
called also acquired immune deficiency syndrome, acquired immunodeficiency syndrome
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