Answer: arachnoids

AnswerCrossword Clue
arachnoidsA fine, delicate membrane, the middle one of the three membranes or meninges that surround the brain and spinal cord, situated between the dura mater and the pia mater
arachnoidsARACHNOID, the arachnoid membrane, a fine delicate membrane which is the middle of the three meninges enveloping the brain and spinal cord