Definitions for arachnoidəˈræk nɔɪd
Random House Webster's College Dictionary
a•rach•noidəˈræk nɔɪd(adj.)
of or belonging to the arachnids.
Category: Entomology
of or pertaining to the arachnoid.
Category: Anatomy
Bot. formed of or covered with long, delicate hairs or fibers.
Category: Botany
(n.)the serous membrane forming the middle of the three coverings of the brain and spinal cord.
Category: Anatomy
Ref: Compare dura mater , meninges , pia mater .
Origin of arachnoid:
1745–55; < NL arachnoīdes < Gk arachnoeidḗs cobweblike. See arachnid , -oid
Princeton's WordNet
arachnoid, arachnoid membrane(noun)
the middle of the 3 meninges
arachnid, arachnoid(adj)
air-breathing arthropods characterized by simple eyes and four pairs of legs
arachnoid, arachnidian, spidery, spiderlike, spiderly(adj)
relating to or resembling a member of the class Arachnida
Wiktionary
arachnoid(Noun)
An arachnid
arachnoid(Noun)
The arachnoid mater, the middle layer of the meninges, the three membranes that protect the brain
arachnoid(Noun)
A round network of fractures in the crust of Venus
arachnoid(Adjective)
Relating to spiders.
arachnoid(Adjective)
Relating to or resembling spider webs.
arachnoid(Adjective)
Relating to the arachnoid mater, the middle layer of the meninges, the three membranes that protect the brain.
Origin: ἀράχνη + -oid
Webster Dictionary
Arachnoid(adj)
resembling a spider's web; cobweblike
Arachnoid(adj)
pertaining to a thin membrane of the brain and spinal cord, between the dura mater and pia mater
Arachnoid(adj)
covered with, or composed of, soft, loose hairs or fibers, so as to resemble a cobweb; cobwebby
Arachnoid(noun)
the arachnoid membrane
Arachnoid(noun)
one of the Arachnoidea
U.S. National Library of Medicine
Arachnoid
A delicate membrane enveloping the brain and spinal cord. It lies between the PIA MATER and the DURA MATER. It is separated from the pia mater by the subarachnoid cavity which is filled with CEREBROSPINAL FLUID.
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