Definition of hydrocephalus in English:



mass nounMedicine
  • A condition in which fluid accumulates in the brain, typically in young children, enlarging the head and sometimes causing brain damage.

    • ‘Sometimes, the large head size reflects hydrocephalus (excess fluid in the brain) and requires surgery.’
    • ‘These conditions include stroke, multiple sclerosis, spina bifida, epilepsy, hydrocephalus and many other conditions.’
    • ‘Neuroimaging may diagnose vascular disease, normal pressure hydrocephalus, tumors, abscess, or subdural hematoma.’
    • ‘About 90 percent of children with the most severe form of spina bifida develop hydrocephalus, or fluid on the brain.’
    • ‘Patients with neurologic diseases such as hydrocephalus and meningitis may also present with persistent vomiting.’


Late 17th century: modern Latin, from Greek hudrokephalon, from hudro- ‘water’ + kephalē ‘head’.