arachnoid

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Related to arachnoid membrane: meninges, arachnoid cyst

arachnoid

[ə′rak‚nȯid]
(anatomy)
A membrane that covers the brain and spinal cord and lies between the pia mater and dura mater.
(botany)
Of cobweblike appearance, caused by fine white hairs. Also known as araneose.
(invertebrate zoology)
Any invertebrate related to or resembling the Arachnida.
References in periodicals archive ?
12) Furthermore, trauma can lead directly to adhesions of the arachnoid membrane.
The segmentally hypertrophied arachnoid membrane provides a cause for the hydrocephalus and corresponding cerebral atrophy.
2-6) Kumar et al (2) postulated that these tumors arise from meningoepithelial cells, which are present throughout the arachnoid membrane with more concentration at the arachnoid villi within the dural venous sinuses.