nulliparous
adjective
nul·lip·a·rous ˌnə-ˈli-pə-rəs 
: of, relating to, or being a female that has not borne offspring
Word History
Etymology
Latin nūllus "not any" + -i- + -parous, probably after Italian nullipara or French nullipare "woman who has not given birth" — more at null entry 1
First Known Use
1859, in the meaning defined above
Medical Definition
nulliparous
adjective
nul·lip·a·rous ˌnə-ˈlip-ə-rəs
: of, relating to, or being a female that has not borne offspring