[ hahy-druh-sef-uh-luhs ]
/ ˌhaɪ drəˈsɛf ə ləs /
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noun Pathology.
an accumulation of serous fluid within the cranium, especially in infancy, due to obstruction of the movement of cerebrospinal fluid, often causing great enlargement of the head; water on the brain.
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Also hy·dro·ceph·a·ly [hahy-druh-sef-uh-lee]. /ˌhaɪ drəˈsɛf ə li/.

Origin of hydrocephalus

1660–70; <Late Latin hydrocephalus (morbus) water-headed (sickness), translation of Greek tò hydroképhalon (páthos). See hydro-1, -cephalous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use hydrocephalus in a sentence

British Dictionary definitions for hydrocephalus


hydrocephaly (ˌhaɪdrəʊˈsɛfəlɪ)

/ (ˌhaɪdrəʊˈsɛfələs) /

accumulation of cerebrospinal fluid within the ventricles of the brain because its normal outlet has been blocked by congenital malformation or disease. In infancy it usually results in great enlargement of the headNontechnical name: water on the brain

Derived forms of hydrocephalus

hydrocephalic (ˌhaɪdrəʊsɛˈfælɪk), hydrocephaloid or hydrocephalous, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for hydrocephalus

[ hī′drō-sĕfə-ləs ]

A usually congenital condition in which an abnormal accumulation of cerebrospinal fluid in the cerebral ventricles causes enlargement of the skull and compression of and injury to brain tissue. If hydrocephalus becomes progressive, a shunt is surgically placed to reduce pressure by conducting fluid away from the brain, usually to the peritoneum.

Other words from hydrocephalus

hydrocephalic adjective (hī′drō-sə-fălĭk)
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.