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 (hī′drō-sĕf′ə-ləs) also hy·dro·ceph·a·ly (-lē)
A usually congenital condition in which an abnormal accumulation of fluid in the cerebral ventricles causes enlargement of the skull and compression of the brain, destroying much of the neural tissue.

[New Latin, from Greek hudrokephalon : hudro-, hydro- + kephalē, head; see ghebh-el- in Indo-European roots.]

hy′dro·ce·phal′ic (-sə-făl′ĭk), hy′dro·ceph′a·loid′ (-loid′), hy′dro·ceph′a·lous (-ləs) adj.
References in periodicals archive ?
Congenital hydrocephalous is a birth defect characterised by accumulation of excess amount of cerebrospinal fluid (CSF) in the nervous system affecting around 1.
14 (p 5mm, hydrocephalous, bleed of more than 10 mm thickness) had higher chances of re-operation (44.
6,7) Most commonly, intracranial involvement presents as meningitis, however, abscess, lateral sinus thrombosis, and otitic hydrocephalous are all possible sequelae of uncontrolled disease.
Specifically, everolimus is indicated for patients [greater than or equal to] 3 years old with SEGA associated with TSC who require therapy to prevent the development of obstructive hydrocephalous intervention but are not candidates for surgical resection and also in adult patients with renal AML and TSC not requiting immediate surgery (Bissler et al.
ICH related to high blood pressure accounts for 10 to 20% of the stroke worldwide with a mortality of 50 to 80% in those with intraventricular extension due to associated obstructive hydrocephalous and perilesional oedema.