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Definition of Arachnida
1. Noun. A large class of arthropods including spiders and ticks and scorpions and daddy longlegs; have four pairs of walking legs and no wings.
Exact synonyms: Class Arachnida
Group relationships: Chelicerata, Superclass Chelicerata
Member holonyms: Arachnid, Arachnoid, Opiliones, Order Opiliones, Order Phalangida, Phalangida, Order Scorpionida, Scorpionida, Chelonethida, Order Chelonethida, Order Pseudoscorpiones, Order Pseudoscorpionida, Pseudoscorpiones, Pseudoscorpionida, Order Pedipalpi, Order Uropygi, Pedipalpi, Uropygi, Araneae, Araneida, Order Araneae, Order Araneida, Acarina, Order Acarina
Generic synonyms: Class
Derivative terms: Arachnidian
Group relationships: Chelicerata, Superclass Chelicerata
Member holonyms: Arachnid, Arachnoid, Opiliones, Order Opiliones, Order Phalangida, Phalangida, Order Scorpionida, Scorpionida, Chelonethida, Order Chelonethida, Order Pseudoscorpiones, Order Pseudoscorpionida, Pseudoscorpiones, Pseudoscorpionida, Order Pedipalpi, Order Uropygi, Pedipalpi, Uropygi, Araneae, Araneida, Order Araneae, Order Araneida, Acarina, Order Acarina
Generic synonyms: Class
Derivative terms: Arachnidian
Definition of Arachnida
1. n. pl. One of the classes of Arthropoda. See Illustration in Appendix.
Medical Definition of Arachnida
1.
Lexicographical Neighbors of Arachnida
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