from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A severe immunological disorder caused by the retrovirus HIV, resulting in a defect in cell-mediated immune response that is manifested by increased susceptibility to opportunistic infections and to certain rare cancers, especially Kaposi's sarcoma. It is transmitted primarily by exposure to contaminated body fluids, especially blood and semen.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- acquired immune deficiency syndrome
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a serious (often fatal) disease of the immune system transmitted through blood products especially by sexual contact or contaminated needles
a(cquired) i(mmune) d(eficiency) s(yndrome).(American Heritage® Dictionary of the English Language, Fourth Edition)