meninx

plural noun, singular me·ninx [mee-ningks] /ˈmi nɪŋks/. Anatomy.

1. the three membranes covering the brain and spinal cord.Compare arachnoid(def 6), dura mater, pia mater.

pl n singular meninx (ˈmiːnɪŋks)

1. the three membranes that envelop the brain and spinal cordSee dura mater, arachnoid, pia mater

n.plural, 1610s, “the three membranes enveloping the brain and spinal cord,” from Middle French meninges (1530s) or directly from medical Latin, plural of meninx, from Greek meninx (see meningitis). n. pl. me•nin•ges (mə-nĭn′jēz)

1. A membrane, especially one of the three membranes enclosing the brain and spinal cord.

1. The three membranes that enclose the vertebrate brain and spinal cord: the pia mater, arachnoid, and dura mater.

The membranes that surround the brain and spinal cord.