Etymology
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AIDS (n.)

1982, acronym formed from acquired immune deficiency syndrome. AIDS cocktail attested by 1997, the thing itself said to have been in use from 1995.

updated on November 29, 2016

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Definitions of AIDS from WordNet

aids (n.)
a serious (often fatal) disease of the immune system transmitted through blood products especially by sexual contact or contaminated needles;
Synonyms: acquired immune deficiency syndrome
Etymologies are not definitions. From wordnet.princeton.edu, not affiliated with etymonline.