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Definition of Seronegative
1. Adjective. (sense of blood serum) Testing negative for a given pathogen, ''especially'' HIV. ¹
2. Adjective. (sense of a person or animal) Having seronegative blood serum. ¹
¹ Source: wiktionary.com
Definition of Seronegative
1. [adj]
Medical Definition of Seronegative
1. Lacking an antibody of a specific type in serum; used to mean absence of prior infection with a specific agent (e.g., rubella virus), disappearance of antibodies after treatment of a disease (e.g., syphilis), or absence of antibody usually found in a given syndrome (e.g., rheumatoid arthritis without rheumatoid factor). (05 Mar 2000)