embryotomy
/ˌɛmbrɪˈɒtəmi/noun
Obstetrics and Veterinary Med. Perforation of the head of a fetus or dismembering of a fetus in order to facilitate its removal from the mother, especially in cases of obstructed labour or fetal death; an instance of this.
Origin
Early 18th century (in an earlier sense). From post-classical Latin embryotomia from Hellenistic Greek ἐμβρυοτομία from ancient Greek ἔμβρυον + -τομία.