1) Adult female 2) She has never given birth 3) Woman 
A woman who has not given birth to a viable child. ... (12 Dec 1998) ... 
(nә-lip´ә-rә) a woman who has not produced a viable offspring; para 0. adj., nullip´arous., adj.
A woman who has never delivered a baby.
Type: Term Pronunciation: nŭ-lip′ă-ră Definitions: 1. A woman who has never borne a child.
Nullipara: A woman who has never given birth to a child.
A woman that has not delivered a baby weighing 500 grams or more or of a gestation length of 20 weeks or longer.
[n] - (obstetrics) a woman who has never give birth to a child
noun (obstetrics) a woman who has never give birth to a child
a woman who has never borne a child.
A woman who has never delivered a baby.