Meaning of the word arachnoid in English

What does arachnoid mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

arachnoid

US /əˈræk.nɔɪd/
UK /əˈræk.nɔɪd/
"arachnoid" picture

Adjective

resembling a spider or a spider's web

Example:
The delicate arachnoid membrane covers the brain.
Some fungi have an arachnoid mycelium.

Noun

the middle of the three membranes that surround the brain and spinal cord

Example:
The cerebrospinal fluid circulates in the subarachnoid space.
Inflammation of the arachnoid can lead to various neurological symptoms.