Arachnoid

3 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Arachnoid \A*rach"noid\, a. [Gr. ? like a cobweb; ? spider,
     spider's web + e'i^dos form.]
     1. Resembling a spider's web; cobweblike.
        [1913 Webster]
  
     2. (Anat.) Pertaining to a thin membrane of the brain and


        spinal cord, between the dura mater and pia mater.
        [1913 Webster]
  
     3. (Bot.) Covered with, or composed of, soft, loose hairs or
        fibers, so as to resemble a cobweb; cobwebby.
        [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Arachnoid \A*rach"noid\, n.
     1. (Anat.) The arachnoid membrane.
        [1913 Webster]
  
     2. (Zool.) One of the Arachnoidea.
        [1913 Webster]

From WordNet (r) 2.0 [wn]:

  arachnoid
       adj : relating to or resembling a member of the class Arachnida
             [syn: {arachnidian}, {spidery}, {spiderlike}, {spiderly}]
       n 1: the middle of the 3 meninges [syn: {arachnoid membrane}]
       2: air-breathing arthropods characterized by simple eyes and
          four pairs of legs [syn: {arachnid}]