Arachnid definition

ə-răknĭd
Frequency:
Any of various arthropods of the class Arachnida, such as spiders, scorpions, mites, and ticks, characterized by four pairs of segmented legs and a body that is divided into two regions, the cephalothorax and the abdomen.
noun
2
0
Any of a large class (Arachnida) of chiefly terrestrial arthropods, including spiders, scorpions, mites, and ticks, typically with four pairs of legs, either lungs or tracheae, a liquid diet, no antennae, simple eyes, sensory pedipalps, and a body divided into cephalothorax and abdomen.
noun
2
0
Any of various arthropods of the class Arachnida, such as spiders, scorpions, mites, and ticks, characterized by four pairs of segmented legs and a body that is divided into two regions, the cephalothorax and the abdomen.
noun
2
0
Any of various arthropods of the class Arachnida, such as spiders, scorpions, mites, and ticks. Arthropods are characterized by four pairs of segmented legs and a body that is divided into two regions, the cephalothorax and the abdomen.
2
0
Any of the eight-legged creatures, including spiders and scorpions, of the class Arachnida.
noun
0
0
Advertisement

Other Word Forms

Noun

Singular:
arachnid
Plural:
arachnids

Origin of arachnid

  • From New Latin Arachnida class name from Greek arakhnē spider

    From American Heritage Dictionary of the English Language, 5th Edition

  • French arachnide (1809, Lamarck), from Ancient Greek ἀράχνη (arakhnē, “spider”).

    From Wiktionary