Definition, Meaning & Synonyms
arachnoid
Adjective/Noun
/əˈræk.nɔɪd/
Definition
Arachnoid refers to one of the layers of tissue that covers the brain and spinal cord, specifically the middle layer that is web-like in appearance.
Examples
- The arachnoid mater is one of the three meninges protecting the brain.
- In some conditions, such as arachnoiditis, inflammation of the arachnoid layer can occur.
- The arachnoid layer appears delicate yet plays a crucial role in cushioning the central nervous system.
Meaning
The term ‘arachnoid’ is derived from the Latin word ‘arachnoides’, meaning ‘like a spider’, reflecting the web-like structure of this membrane.
Synonyms
- Web-like
- Filmy
- Vascular
