Englishfor English speakers
testing
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noun
the act of subjecting to experimental test in order to determine how well something works
they agreed to end the testing of atomic weapons
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noun
an examination of the characteristics of something
there are laboratories for commercial testing
it involved testing thousands of children for smallpox
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noun
the act of giving students or candidates a test (as by questions) to determine what they know or have learned
AIDS
Noun
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AIDS is a disease which destroys the natural system of protection that the body has against other diseases.
The AIDS epidemic in the United States began in the 1980s.
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AIDS is an abbreviation for 'acquired immune deficiency syndrome'.