ectopic pregnancy vs metacyesis

ectopic pregnancy and metacyesis both are nouns.

Word	Noun	Adjective	Verb	Adverb
ectopic pregnancy	Yes	No	No	No
metacyesis	Yes	No	No	No

As nouns, ectopic pregnancy and metacyesis are synonyms defined as:

ectopic pregnancy and metacyesis: pregnancy resulting from gestation elsewhere than in the uterus

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

ectopic pregnancy (noun)	metacyesis (noun)
pregnancy resulting from gestation elsewhere than in the uterus	pregnancy resulting from gestation elsewhere than in the uterus