Meaning of hydrocephalus

hy•dro•ceph•a•lus

Pronunciation: (hī"dru-sef'u-lus), [key]
— n. Pathol.
  1. an accumulation of serous fluid within the cranium, esp. in infancy, due to obstruction of the movement of cerebrospinal fluid, often causing great enlargement of the head; water on the brain.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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