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Definition of Arachnoid
1. Noun. The middle of the 3 meninges.
Exact synonyms: Arachnoid Membrane
Generic synonyms: Meninges, Meninx
Group relationships: Leptomeninges
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
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.
Exact synonyms: Arachnid
Generic synonyms: Arthropod
Group relationships: Arachnida, Class Arachnida
Specialized synonyms: Daddy Longlegs, Harvestman, Phalangium Opilio, Scorpion, False Scorpion, Pseudoscorpion, Whip Scorpion, Whip-scorpion, Spider, Acarine
Generic synonyms: Arthropod
Group relationships: Arachnida, Class Arachnida
Specialized synonyms: Daddy Longlegs, Harvestman, Phalangium Opilio, Scorpion, False Scorpion, Pseudoscorpion, Whip Scorpion, Whip-scorpion, Spider, Acarine
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)