subarachnoid

[suhb-uh-rak-noid]
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adjective Anatomy.

of, relating to, or situated below the arachnoid membrane.

Origin of subarachnoid

First recorded in 1830–40; sub- + arachnoid
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for subarachnoid

Historical Examples of subarachnoid