Definition of craniopagus in US English:

craniopagus

noun

  • The condition, affecting some conjoined twins, of being joined at the head.

    as modifier ‘adult craniopagus twins’
    • ‘The first successful operation I could find on craniopagus twins was 1952, where both twins survived.’
    • ‘However, this is the first time surgeons have tried to separate adult craniopagus twins.’
    • ‘Carson was the primary neurosurgeon that successfully separated seven-month-old German craniopagus twin boys.’
    • ‘Rebeca was the eighth documented case in the world of craniopagus parasiticus, doctors said.’
    • ‘Manar was born with a rare condition known as craniopagus parasiticus, which occurs when an embryo begins to split into identical twins but fails to complete the process.’

Origin

Late 19th century: from cranio- + Greek ‘that which is fixed’.

Pronunciation

craniopagus

/ˌkrānēˈäpəɡəs/