Subarachnoid

Origin

- + arachnoid

Full definition of subarachnoid

Adjective

1. (medicine) Located or occurring below the arachnoid mater, often specifically between the arachnoid membrane and the pia mater
• 1988, May 20, Jack Clark, Touch of Death, After an internal examination he found that "the cause of death was craniocerebral injury with subarachnoid hemorrhage and internal abdomen injury with perforation of the intestine and acute peritonitis ...
  ."

Derived terms

• subarachnoid space