释义 |
arach·noid I. \əˈrakˌnȯid\ noun (-s) Etymology: New Latin arachnoides, from Greek arachnoeidēs cobweblike, from arachn- + -eidēs -oid : a thin membrane of the brain and spinal cord that lies between the dura mater and the pia mater II. adjective : of or relating to the arachnoid < the arachnoid membrane > III. adjective Etymology: arachn- + -oid : of, relating to, or characterizing the Arachnida : like arachnids IV. noun (-s) : arachnid; broadly : any of various invertebrate animals that resemble or are related to arachnids V. adjective Etymology: Greek arachnoeidēs : resembling a spider's web; specifically : covered with or composed of soft loose hairs or fibers — used especially of plants < an arachnoid leaf > |