Sorry, no definitions found. Check out and contribute to the discussion of this word!


Sorry, no etymologies found.


  • One form of parasitic twin, called fetus in fetu is another, more rare and often devastating case of poor twinning, where the fetus of one twin, it seems, actually forms around the other, in effect born with another body inside it.

    How Twins Go Bad

  • There seems to be a grey area between a fetus in fetu and what is called a teratoma: a kind of encapsulated tumor which contains tissue or organ components resembling normal derivatives of all three germ layers.

    How Twins Go Bad

  • The growth may also have been a case of "fetus in fetu" — in which a fetal twin begins to form within another — but such cases very rarely occur in the brain, Grabb said.

    Surgeon finds foot in newborn's brain tumor

  • In a rare case of fetus in fetu, the twin had fed off his brother's blood supply, growing fingernails that were "quite long."

    'Pregnant' Man Delivers Own Twin

  • This kind of completeness is rare in parasitic twins, especially among fetus in fetu, which tend not to be "alive" in the sense we think of, but rather a sort of growth in human form.

    How Twins Go Bad

  • The brothers have tremendous physical altercations, and it's during one hospital visit that an x-ray of Barry's skull shows what may or may not be a fetus in fetu, or undeveloped twin (in this case, a triplet), in the base of his brain.

    Rachel Pine: This Mockumentary Rocks the Genre, but Doesn't Get a Seat at the Table

  • A fetus can get trapped inside of its twin its called fetus in fetu. the embryo that gets caught inside of its sibling, feeds off of the host. it can even continue growing after born.

    21 Amazing Facts About Nintendo

  • Let's go over some of the basics of a fetus in fetu.

    CNN Transcript May 16, 2008

  • Conceptione vero facta geminatur calor ex fetu, unde melius cibus digeritur, nec tantae superfluitates oriuntur ut prius.

    A Tender Age: Cultural Anxieties over the Child in the Twelfth and Thirteenth Centuries

  • BIG BLUE WAVE: CHILE: Fetus in fetu baby: no abortion involved skip to main

    CHILE: Fetus in fetu baby: no abortion involved


Log in or sign up to get involved in the conversation. It's quick and easy.