hydrocephalus
C2Technical / Medical
Definition
Meaning
A medical condition where an excessive amount of cerebrospinal fluid accumulates within the brain's ventricles, causing enlargement and pressure.
While strictly a neurological condition, the term can be used in a limited metaphorical sense to describe a system or entity swollen with a superfluous element, leading to dysfunction or inefficiency.
Linguistics
Semantic Notes
The term is a compound of Greek roots meaning 'water' (hydro) and 'head' (cephalus). It describes a pathological state, not a normal anatomical feature.
Dialectal Variation
British vs American Usage
Differences
No significant lexical differences. Spelling follows standard national conventions (e.g., in related texts: 'paediatric' vs. 'pediatric').
Connotations
Exclusively medical/clinical in both regions. No additional cultural connotations.
Frequency
Equally low-frequency in both dialects, confined to medical and related contexts.
Vocabulary
Collocations
Grammar
Valency Patterns
[Patient] was diagnosed with hydrocephalus.Hydrocephalus occurs when [cerebrospinal fluid] builds up.The [shunt] is used to manage hydrocephalus.Vocabulary
Synonyms
Neutral
Weak
Vocabulary
Antonyms
Usage
Context Usage
Business
Not used.
Academic
Used in medical, biological, and neuroscientific literature to describe a specific pathology.
Everyday
Very rare; may be used in personal or family health discussions, often with the lay term 'water on the brain'.
Technical
Core term in neurology, neurosurgery, paediatrics, and radiology reports.
Examples
By Part of Speech
adjective
British English
- The hydrocephalic infant required urgent assessment.
- The scan showed hydrocephalic dilation.
American English
- The hydrocephalic child was scheduled for surgery.
- Hydrocephalic changes were noted on the MRI.
Examples
By CEFR Level
- The doctor said the baby has water on the brain.
- Hydrocephalus is a serious condition where fluid builds up in the brain, often requiring surgical intervention.
- The aetiology of congenital hydrocephalus is multifactorial, involving genetic predisposition and potential environmental factors that disrupt cerebrospinal fluid dynamics.
Learning
Memory Aids
Mnemonic
Imagine a HYDRant pouring water (HYDRO) into a CEPHALic (relating to the head) cup until it overflows and swells – a swollen head from water.
Conceptual Metaphor
THE HEAD/BRAIN IS A CONTAINER (that can be overfilled with fluid).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not confuse with 'гидроцефалия' – it is a direct cognate with identical meaning.
Common Mistakes
- Mispronouncing as 'hydro-cephal-us' with a hard 'c' (should be soft 'sef').
- Misspelling as 'hydrocephaly' (a related term, but 'hydrocephalus' is the condition name).
- Using it as a countable noun (e.g., 'a hydrocephalus') – it is generally uncountable.
Practice
Quiz
What is the primary characteristic of hydrocephalus?
FAQ
Frequently Asked Questions
No. While head enlargement can be a symptom in infants, hydrocephalus refers specifically to the pathological accumulation of fluid causing pressure. Macrocephaly (large head) can have other causes.
Yes. While often associated with infancy, adults can develop 'Normal Pressure Hydrocephalus' (NPH) or secondary hydrocephalus from injury, infection, or tumour.
It is a neurological condition. If untreated, the pressure can cause brain damage leading to developmental or intellectual impairments. Timely treatment aims to prevent or minimise such outcomes.
The most common treatment is the surgical insertion of a shunt, a flexible tube that drains excess fluid from the brain to another part of the body (like the abdomen) where it can be absorbed.