(pri-mip´ә-rә) a woman who has had one pregnancy that resulted in a fetus that attained a weight of 500 g or a gestational age of 20 weeks, regardless of whether the infant was living at birth or whether it was a single or multiple birth. Also written para I or I-para. adj., primip´arous., adj. Found on http://www.encyclo.co.uk/local/21001
Pri·mip'a·ra noun [ Latin , from primus first + parere to bring forth.] (Medicine) A woman who bears a child for the first time. Found on http://www.encyclo.co.uk/webster/P/161