In database searching, an irrelevant entry or record retrieved in a keywords search. False drops (also called false hits) usually occur when the keyword(s) used in a search statement have more than one meaning.
For example, a keywords search on the term aids will retrieve not only information about HIV infection, but also about hearing aids, teaching aids, and band-aids. To correct this problem, the word disease can be included to make the keywords search more specific.
See also: Boolean searching