1) Abnormal condition 2) Abnormalcy 3) Abnormality 4) Hydrocephalus 1) Hydrocephalus 
An increased quantity of cerebrospinal fluid (CSF) inside the brain that can result in increased pressure. Often the result of a disturbance (obstruction) in the normal CSF circulation or the over-production of CSF. ... (27 Sep 1997) ... 
(hi″dro-sef´ә-le) hydrocephalus.
Type: Term Pronunciation: hī′drō-sef′ă-lē Synonyms: hydrocephalus
Hydrocephaly: Also known as hydrocephalus, this is an abnormal buildup of cerebrospinal fluid (CSF) in the ventricles of the brain. The fluid is often under increased pressure and can compress and damage the brain. Hydrocephalus can arise before birth or any time afterward. It may be due to many causes including a birth defect, hemorrhage into the ...
hydrocephaly 1. 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. 2. An increased quantity of cerebrospinal fluid (CSF) inside the brain that can result i...