Of, denoting to, or relating to nullipara, i.e. a female that has not yet carried or given birth to a viable offspring
The term nulliparous pertains to a female that has not yet become pregnant and has not delivered an infant. It is used to compare with other females, particularly those that have given birth at one time (primiparous) and those that have more than once (multiparous).
Word origin: Latin nūllus (none) + parere (to give birth)