Definition of Arachnida in English:

Arachnida

plural nounəˈraknɪdəəˈraknidə

Zoology

A class of chelicerate arthropods that includes spiders, scorpions, mites, and ticks. They have become adapted for a terrestrial life and possess both lungs and tracheae, and many have silk or poison glands.
〔动〕蛛形纲动物
Example sentencesExamples
- The Arachnida include the terrestrial chelicerates that everyone is familiar with, and that nearly everyone would rather not be too familiar with: spiders, ticks and mites, and scorpions (Scorpiones).
- Ticks belong to the class Arachnida, which counts mites, spiders and scorpions among its members.
- However, they were not true spiders, nor necessarily ancestral to them, but represented independent offshoots of the Arachnida.
- The Arachnida are notorious for the venomous organisms that form part of this class.
- The study of the Southern African baboon spiders form part of the South African National Survey of Arachnida.

Origin

Modern Latin (plural), from Greek arakhnē 'spider'.

Definition of Arachnida in US English:

Arachnida

plural nounəˈraknidə

Zoology

A class of chelicerate arthropods that includes spiders, scorpions, mites, and ticks. They have become adapted for a terrestrial life and possess both lungs and tracheae, and many have silk or poison glands.
〔动〕蛛形纲动物
Example sentencesExamples
- The Arachnida include the terrestrial chelicerates that everyone is familiar with, and that nearly everyone would rather not be too familiar with: spiders, ticks and mites, and scorpions (Scorpiones).
- The Arachnida are notorious for the venomous organisms that form part of this class.
- Ticks belong to the class Arachnida, which counts mites, spiders and scorpions among its members.
- The study of the Southern African baboon spiders form part of the South African National Survey of Arachnida.
- However, they were not true spiders, nor necessarily ancestral to them, but represented independent offshoots of the Arachnida.

Origin

Modern Latin (plural), from Greek arakhnē ‘spider’.

词汇	Arachnida
释义	Definition of Arachnida in English: Arachnida plural nounəˈraknɪdəəˈraknidə Zoology A class of chelicerate arthropods that includes spiders, scorpions, mites, and ticks. They have become adapted for a terrestrial life and possess both lungs and tracheae, and many have silk or poison glands. 〔动〕蛛形纲动物 Example sentencesExamples The Arachnida include the terrestrial chelicerates that everyone is familiar with, and that nearly everyone would rather not be too familiar with: spiders, ticks and mites, and scorpions (Scorpiones). Ticks belong to the class Arachnida, which counts mites, spiders and scorpions among its members. However, they were not true spiders, nor necessarily ancestral to them, but represented independent offshoots of the Arachnida. The Arachnida are notorious for the venomous organisms that form part of this class. The study of the Southern African baboon spiders form part of the South African National Survey of Arachnida. Origin Modern Latin (plural), from Greek arakhnē 'spider'. Definition of Arachnida in US English: Arachnida plural nounəˈraknidə Zoology A class of chelicerate arthropods that includes spiders, scorpions, mites, and ticks. They have become adapted for a terrestrial life and possess both lungs and tracheae, and many have silk or poison glands. 〔动〕蛛形纲动物 Example sentencesExamples The Arachnida include the terrestrial chelicerates that everyone is familiar with, and that nearly everyone would rather not be too familiar with: spiders, ticks and mites, and scorpions (Scorpiones). The Arachnida are notorious for the venomous organisms that form part of this class. Ticks belong to the class Arachnida, which counts mites, spiders and scorpions among its members. The study of the Southern African baboon spiders form part of the South African National Survey of Arachnida. However, they were not true spiders, nor necessarily ancestral to them, but represented independent offshoots of the Arachnida. Origin Modern Latin (plural), from Greek arakhnē ‘spider’.
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