'pro-lifer' definitions:

Definition of 'pro-lifer'

(from WordNet)
noun
An advocate of full legal protection for embryos and fetuses; someone opposed to legalized induced abortion

Definition of 'pro-lifer'

From: GCIDE
  • pro-lifer \pro-lif"er\, n. One who is opposed to voluntary abortion; one who is pro-life, especially an activist in the campaign to make abortion illegal. [PJC]