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Definition of A negative
1. Adjective. (medicine) Of a blood type within the ABO and Rh blood grouping system. Blood type '''A negative''' has a phenotype of "A" and a Rhesus system classification of negative. ¹
¹ Source: wiktionary.com
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1. Adjective. (medicine) Of a blood type within the ABO and Rh blood grouping system. Blood type '''A negative''' has a phenotype of "A" and a Rhesus system classification of negative. ¹
¹ Source: wiktionary.com