Arachnoid Definition
ə-răknoid
adjective
Designating the middle of three membranes covering the brain and the spinal cord.
Webster's New World
Covered with or consisting of soft, fine hairs or fibers.
Webster's New World
Of or like an arachnid.
Webster's New World
Of or relating to a delicate membrane enclosing the spinal cord and brain.
American Heritage Medicine
Of, relating to, or resembling arachnids.
American Heritage Medicine
Synonyms:
- spiderly
- spiderlike
- spidery
- arachnidian
noun
The arachnoid membrane.
Webster's New World
An arachnid.
Webster's New World
An arachnid.
American Heritage Medicine
A delicate membrane that encloses the spinal cord and brain and lies between the pia mater and dura mater.
American Heritage Medicine
(biology) An arachnid.
Wiktionary
Synonyms:
Other Word Forms of Arachnoid
Noun
Singular:
arachnoid
Plural:
arachnoidsOrigin of Arachnoid
New Latin arachnoīdēs from Greek arakhnoeidēs cobweblike arakhnē spider -oeidēs -oid
From American Heritage Dictionary of the English Language, 5th Edition
Ancient Greek ἀράχνη (arakhnē, “spider”) + -oid
From Wiktionary
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