AIDS is a disease that can damage any of the body's major organ systems because HIV destroys immune system cells. HIV attacks the body through three disease processes: immunodeficiency, autoimmunity, and nervous system dysfunction.cquired immune deficiency syndrome (AIDS) is an infectious disease caused by the human immunodeficiency virus (HIV). There are two variants of the HIV virus, HIV-1 and HIV-2, both of which ultimately cause AIDS.
overlook noun [C]. âº a âplace from where a âperson can âlook at something, âespecially at an âarea of ânatural âbeauty: There are âlots of âscenic overlooks along the âroad from New York to Montreal. (Definition of overlook from the Cambridge Advanced Learnerâs Dictionary & Thesaurus Â© Cambridge University Press). See all translations.
valÂ·ance. n. 1. An ornamental drapery hung across a top edge, as of a bed, table, or canopy. 2. A short drapery, decorative board, or metal strip mounted especially across the top of a window to conceal structural fixtures. tr.v. valÂ·anced, valÂ·ancÂ·ing, valÂ·ancÂ·es. To supply with valances or a valance.