As used in this subchapter:
(1)
(A) “Abortion” means the act of using, prescribing, administering, procuring, or selling of any instrument, medicine, drug, or any other substance, device, or means with the purpose to terminate the pregnancy of a woman, with knowledge that the termination by any of those means will with reasonable likelihood cause the death of the unborn child.
(B) An act under subdivision (1)(A) of this section is not an abortion if the act is performed with the purpose to:
(i) Save the life or preserve the health of the unborn child;
(ii) Remove a dead unborn child caused by spontaneous abortion; or
(iii) Remove an ectopic pregnancy;
(2) “Fertilization” means the fusion of a human spermatozoon with a human ovum;
(3) “Medical emergency” means a condition in which an abortion is necessary to preserve the life of a pregnant woman whose life is endangered by a physical disorder, physical illness, or physical injury, including a life-endangering physical condition caused by or arising from the pregnancy itself; and
(4) “Unborn child” means an individual organism of the species Homo sapiens from fertilization until live birth.