plural noun, singular me·ninx [mee-ningks] /ˈmi nɪŋks/. Anatomy.
- the three membranes covering the brain and spinal cord.Compare arachnoid(def 6), dura mater, pia mater.
pl n singular meninx (ˈmiːnɪŋks)
- the three membranes that envelop the brain and spinal cordSee dura mater, arachnoid, pia mater
adj.1829, from Modern Latin meningeus, from meninx “membrane of the brain” (1610s; see meningitis) + -al (1). 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). adj.
- Of, relating to, or affecting the meninges.
- 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.