eccyesis vs extrauterine pregnancy

eccyesis and extrauterine pregnancy both are nouns.

Word	Noun	Adjective	Verb	Adverb
eccyesis	Yes	No	No	No
extrauterine pregnancy	Yes	No	No	No

As nouns, eccyesis and extrauterine pregnancy are synonyms defined as:

eccyesis and extrauterine pregnancy: pregnancy resulting from gestation elsewhere than in the uterus

Other synonyms of eccyesis include ectopic gestation, ectopic pregnancy, extrauterine gestation, metacyesis.

eccyesis (noun)	extrauterine pregnancy (noun)
pregnancy resulting from gestation elsewhere than in the uterus	pregnancy resulting from gestation elsewhere than in the uterus