Definition of Arachnoid

1. Noun. The middle of the 3 meninges.

Exact synonyms: Arachnoid Membrane
Generic synonyms: Meninges, Meninx
Group relationships: Leptomeninges



2. Adjective. Relating to or resembling a member of the class Arachnida.
Exact synonyms: Arachnidian, Spiderlike, Spiderly, Spidery
Category relationships: Zoological Science, Zoology
Derivative terms: Arachnida, Spider
Partainyms: Class Arachnida, Class Arachnida

3. Noun. Air-breathing arthropods characterized by simple eyes and four pairs of legs.

Definition of Arachnoid

1. a. Resembling a spider's web; cobweblike.

2. n. The arachnoid membrane.

Definition of Arachnoid

1. Adjective. Relating to spiders. ¹

2. Adjective. Relating to or resembling spider webs. ¹

3. Adjective. (anatomy) Relating to the arachnoid mater, the middle layer of the meninges, the three membranes that protect the brain. ¹

4. Noun. (biology) An arachnid ¹

5. Noun. (physiology) The arachnoid mater, the middle layer of the meninges, the three membranes that protect the brain ¹

6. Noun. (astronomy) A round network of fractures in the crust of Venus ¹

¹ Source: wiktionary.com

Definition of Arachnoid

1. [n -S]

Medical Definition of Arachnoid

1. Like a cobweb, covered with or consisting of soft fibres or hairs so entangled as to give a cobwebby appearance. (09 Oct 1997)

Arachnoid Pictures

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Lexicographical Neighbors of Arachnoid

arachnid
arachnid vectors
arachnida
arachnidan
arachnidans
arachnidial
arachnidian
arachnidism
arachnidium
arachnids
arachnitis
arachnobutyrophobia
arachnodactyly
arachnogenic
arachnogenic necrosis
arachnoid (current term)
arachnoid foramen
arachnoid granulations
arachnoid mater
arachnoid mater cranialis
arachnoid mater encephali
arachnoid maters
arachnoid membrane
arachnoid of brain
arachnoid of spinal cord
arachnoid trabecula
arachnoid villi
arachnoidal

Literary usage of Arachnoid

Below you will find example usage of this term as found in modern and/or classical literature:

1. Anatomy, Descriptive and Surgical by Henry Gray (1883)
"The arachnoid is exposed by slitting up the dura mater, and reflecting that ... Above, it is continuous with the cerebral arachnoid ; on either side it is ..."

2. Manual of pathological anatomy by Charles Handfield Jones (1875)
"THE traditional doctrine of anatomy, that the arachnoid is a serous ... It must also be remembered that the- arachnoid is entirely dependent for its supply ..."

3. The American Journal of the Medical Sciences by Southern Society for Clinical Investigation (U.S.) (1844)
"In intra-arachnoid hemorrhage, the blood always is (riven out by exhalation. ... In sub-arachnoid hemorrhage, the blood mingling with the cérébro-spinal ..."

4. Anatomy of the Brain and Spinal Cord by Joseph Ryland Whitaker (1899)
"THE arachnoid. (Figs. 2 to 6.) The arachnoid is an extremely fine and delicate membrane. It is non-vascular, and thus differs materially from the other two. ..."

5. Lectures on the Morbid Anatomy of the Serous and Mucous Membranes by Thomas Hodgkin (1836)
"MORBID APPEARANCES OF CEREBRAL arachnoid NOT REFERRI- BLE TO INFLAMMATION—HAEMORRHAGE, SPONTANEOUS OR TRAUMATIC- ARGUMENTS TO SHEW THAT THE DURA MATER HAS A ..."

6. Quain's Elements of Anatomy by Jones Quain, Edward Albert Sharpey-Schäfer, George Dancer Thane, Johnson Symington (1893)
"THE arachnoid MEMBRANE. The arachnoid is a delicate membrane which is situated ... Thus, in the longitudinal fissure, the arachnoid does not descend to the ..."

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