ETYM Greek, like a cobweb; arakne spider, spider's web + oidos form.
Like a spider; like a spider's web.
(Zoology) Relating to or resembling a member of the class Arachnida; SYN. arachnidian, spidery.
The middle of the 3 meninges; SYN. arachnoid membrane.
Fina membrana u mozgu.