false-negative

[fawls-neg-uh-tiv]
noun Also, false negative.
1.
Medicine/Medical.
a.
a test result that is incorrect because the test failed to recognize an existing condition or finding.
b.
a person who receives this test result.
2.
a.
any screening test result that failed to detect a person or thing being sought: Let's hope the new body scanner doesn't give us any false-negatives.
b.
a person or thing that is missed by such a test: Retrain your spam filter if you’re getting too many false-negatives in your inbox.
adjective
3.
pertaining to or being a false-negative.
Compare false-positive.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Dictionary.com's 21st Century Lexicon
Main Entry:  false-negative
Part of Speech:  n, adj
Definition:  See false negative
Dictionary.com's 21st Century Lexicon
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Example sentences
There can be false-positive and false-negative results.
False-negative results can theoretically occur as a consequence of antibiotic usage or chronic infection.
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