seronegative

seronegative /se·ro·neg·a·tive/ (-neg´ah-tiv) showing negative results on serological examination; showing a lack of antibody.

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se·ro·neg·a·tive (sîr-ng-tv)

adj.

Having a negative reaction to a serological test for a disease, especially to a test for syphilis or AIDS.

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seronegative

[-neg′ətiv]

Etymology: L, serum, whey, negare, to deny

a serologic test with negative results.

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seronegative (sir´ōneg´tiv),

n serologic evidence of the lack of an antibody of a specific type in the serum; diagnostically useful in ruling out Lyme disease, syphilis, human immunodeficiency virus (HIV), serum hepatitis B, and many other viral diseases.

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seronegative

showing a negative serum reaction; i.e. an animal with no detectable serum antibodies to a specified microorganism.

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seronegative

Immunology The lack of antibodies or other immune markers in serum that would indicate exposure to a particular organism or antigen; in an immunocompetent person, exposure to an antigen results in a seroconversion and the subject is said to then be seropositive. Cf Seropositive.