What does extrauterine mean?
Extrauterine is a medical adjective meaning 'outside the uterus.' It is formed from the Latin prefix extra- ('outside') combined with uterine ('of the womb'), and it appears most often in obstetrics and gynecology. Its dominant use describes pregnancies that implant and develop somewhere other than the uterine cavity — most commonly in a fallopian tube, but occasionally in the abdomen, ovary, or cervix. The phrase 'extrauterine pregnancy' is a precise alternative to the more familiar clinical label 'ectopic pregnancy,' which covers any abnormally placed implantation. The word also appears in neonatology, where 'extrauterine life' denotes existence after birth, as when doctors describe a newborn's transition from intrauterine to extrauterine circulation and breathing. Because it is a specialist term, extrauterine carries a formal, technical register: it belongs in medical literature, case reports, and patient-facing health writing rather than casual speech. Its clear morphology — extra- versus intra- — makes it easy to parse once encountered.
Situated, occurring, or developing outside the uterus, especially of a pregnancy implanted elsewhere than in the uterine cavity.
"An extrauterine pregnancy in the fallopian tube requires prompt surgical attention."
In current obstetric practice, 'ectopic pregnancy' is the preferred clinical label, but 'extrauterine' persists in formal and descriptive medical usage.
Of or relating to existence or physiological function after birth, as opposed to within the womb.
"At birth, the infant's circulation must switch to sustain extrauterine life."
An extrauterine fetus can, remarkably, survive to full term — a handful of abdominal pregnancies have ended in healthy live births.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of extrauterine
Extrauterine derives from Latin elements: the prefix extra-, meaning 'outside' or 'beyond,' attached to uterinus ('of the womb'), itself formed from uterus, the Latin word for 'womb.' The compound follows the same pattern as intrauterine, its direct antonym, which pairs the Latin prefix intra- ('within') with the same root. The word entered English as part of the anatomical vocabulary built on New Latin during the development of modern medicine. It shares its root with uterine and related medical terms such as uterotomy.
How extrauterine is actually used
A technical term confined almost entirely to medical and scientific writing; it would sound clinical or stilted in everyday conversation. In obstetrics, 'ectopic pregnancy' is the far more frequent term for pregnancy outside the uterus, though 'extrauterine pregnancy' remains standard in formal medical texts.
Easily confused with extrauterine
'Ectopic' broadly means occurring in an abnormal place and is the more common clinical term for pregnancy outside the uterus, while 'extrauterine' specifically means outside the uterus.