- 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.
Also hy·dro·ceph·a·ly [hahy-druh-sef-uh-lee] /ˌhaɪ drəˈsɛf ə li/.
Origin of hydrocephalus
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for hydrocephaly
The bombé forehead is characteristic of hydrocephaly, but may occur also in the scaphoid cranium.Pedagogical Anthropology
- 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
Word Origin and History for hydrocephaly
Online Etymology Dictionary, © 2010 Douglas Harper
- 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.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- 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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.