HYDROCEPHALUS
hydrocephalus, hydrocephaly
(noun) an abnormal condition in which cerebrospinal fluid collects in the ventricles of the brain; in infants it can cause abnormally rapid growth of the head and bulging fontanelles and a small face; in adults the symptoms are primarily neurological
Source: WordNet® 3.1
Etymology
Noun
hydrocephalus (usually uncountable, plural hydrocephaluses)
(medicine) 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
Synonyms
• water on the brain (informal)
Source: Wiktionary
Hy`dro*ceph"a*lus, n. Etym: [NL., fr. Gr. "y`dwr water + (Med.)
Definition: An accumulation of liquid within the cavity of the cranium,
especially within the ventricles of the brain; dropsy of the brain.
It is due usually to tubercular meningitis. When it occurs in
infancy, it often enlarges the head enormously.
Source: Webster’s Unabridged Dictionary 1913 Edition