n.a lawsuit filed to determine the father of a child born out of wedlock (and to provide for the support of the child once paternity is determined)
同义词：bastardy proceeding
英汉双解大词典
paternity suit(paternitysuits)
1.
N-COUNT（可数名词）
If a woman starts or takes out a paternity suit, she asks a court of law to help her to prove that a particular man is the father of her child, often in order to claim financial support from him. 生父确认讼案