Arachnida

Từ điển WordNet v3.1 - WordNet Dictionary

noun

a large class of arthropods including spiders and ticks and scorpions and daddy longlegs;
have four pairs of walking legs and no wings
• Syn:
class Arachnida
• Derivationally related forms:
arachnidian
• Hypernyms:
class
• Member Holonyms:
Chelicerata, superclass Chelicerata
• Member Meronyms:
arachnid, arachnoid, Phalangida, order Phalangida, Opiliones,
order Opiliones, Scorpionida, order Scorpionida, Chelonethida, order Chelonethida, Pseudoscorpionida,
order Pseudoscorpionida, Pseudoscorpiones, order Pseudoscorpiones, Pedipalpi, order Pedipalpi, Uropygi,
Uropygi, Araneae, order Araneae, Araneida, order Araneida,
Acarina, order Acarina