Definition of subarachnoid
: of, relating to, occurring, or situated under the arachnoid membrane subarachnoid hemorrhage
Recent Examples of subarachnoid from the Web
Black had suffered a subarachnoid hemorrhage, a blood vessel rupturing at the base of his brain.
The cause was a subarachnoid hemorrhage, her family said in a statement.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'subarachnoid.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of subarachnoid
Medical Definition of subarachnoid
1: situated or occurring under the arachnoid membrane subarachnoid hemorrhage
2: of, relating to, or involving the subarachnoid space and the fluid within it subarachnoid meningitis
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