subarachnoid space
noun
Simple meaning
A space in the meninges beneath the arachnoid membrane and above the pia mater that contains the cerebrospinal fluid.
Pronunciation
Say it like this:
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IPA pronunciation (US)
ˈsubɚˈɑknɔɪdspeɪs
This word is pronounced essentially the same in American and British English, so one transcription covers both.
IPA (International Phonetic Alphabet) is a standard way of writing speech sounds.
Definition
Everyday modern meanings first, grouped by part of speech.
noun
neuroanatomy
A space in the meninges beneath the arachnoid membrane and above the pia mater that contains the cerebrospinal fluid
neuroanatomy
The space between the arachnoid mater and the pia mater that surrounds the brain and spinal cord, through which the cerebrospinal fluid circulates and major blood vessels pass, and across which extend delicate trabeculae of connective tissue.
Word Aura™
How this word commonly comes across.
This meaning: A space in the meninges beneath the arachnoid membrane and above the pia mater that contains the cerebrospinal fluid
Used this way, subarachnoid space is a specialist word that usually carries little praise or criticism of its own. It turns up most in technical or specialist writing contexts.
- Emotional tone
- Neutral
- Formality
- Specialist/technical
- Intensity
- Not strongly marked
- How common
- Specialized
- Connotation
- Clinical and technical
- Usage feel
- Technical and specialized
Where it naturally appears
- Technical/specialist writing
Usage note
In general conversation this sense usually needs explaining — outside its field, people reach for a plainer word.
Word Aura describes common impressions, not a measurement. Tone changes with sentence, speaker, relationship and situation.
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