SERONEGATIVE Meaning of SERONEGATIVE in English seronegative BrE AmE ˌsɪər əʊ ˈneɡ ət ɪv ◂ AmE \ ˌsɪr oʊ ˈneɡ ət̬ ɪv ◂ Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012