The Collaborative International Dictionary
Exfetation
Exfetation \Ex`fe*ta"tion\, n [Pref. ex- + fetation.] (Med.)
Imperfect fetation in some organ exterior to the uterus;
extra-uterine fetation.
--Hoblyn.
Wiktionary
exfetation
n. (context medicine English) imperfect fetation in some organ exterior to the uterus