arachnoid

¹arach·noid

adj \ə-ˈrak-ˌnȯid\

Definition of ARACHNOID

1

: of or relating to a thin membrane of the brain and spinal cord that lies between the dura mater and the pia mater

2

: covered with or composed of soft loose hairs or fibers

First Known Use of ARACHNOID

1789

Rhymes with ARACHNOID

adenoid, alkaloid, amoeboid, aneroid, anthropoid, asteroid, Australoid, carcinoid, Caucasoid, celluloid, crystalloid, echinoid, ellipsoid, embryoid, eunuchoid, flavonoid, helicoid, hemorrhoid, hominoid, humanoid, hysteroid, metalloid, Mongoloid, myeloid, nautiloid, nucleoid, null and void, obovoid, opioid, osteoid, overjoyed, paranoid, planetoid, Polaroid, retinoid, rheumatoid, solenoid, Stalinoid, trapezoid, unalloyed, unemployed