from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Never having completed a pregnancy beyond 20 weeks.
from The Century Dictionary and Cyclopedia
- n. The state of not having given birth to a child.
Sorry, no etymologies found.
The reality is that nulliparity may be related to an increase in breast cancer, so women who abort and never have another child may lose the protective effect that pregnancy has on estrogen levels and breast tissue.
In terms of demographic factors, young age (adolescence), low or nulliparity, 2nd-trimester procedures, and Catholicism have been characteristics of women who suffered post-abortion depression.