Hydrocephalus
Pronunciation : Hy`dro*ceph"a*lus
Part of Speech : n.
Etymology : [NL., fr. Gr. "y`dwr water + (Med.)
Definition : Defn: 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