A group of bugs known for having four pairs of legs and either one or two bodily segments; spiders are the most famous of all arachnids.

"a spider," 1869, from French arachnide (1806) or Modern Latin Arachnida, introduced as name for this class of arthropods 1815 by French biologist Jean Baptiste Pierre Antoine de Monet de La [..]

the Class of Arthropods that includes spiders, mites, ticks, scorpions, pseudoscorpions and harvestmen. Read more on: Arachnid

a member of the arthropod class Arachnida e.g. spiders, scorpions, mites, and ticks, characterised by four pairs of segmented legs and a body that is divided into two regions, the cephalothorax and th [..]

a member of the Class Arachnida. This includes spiders, ticks, mites, scorpions, and their kin. Spiders belong to the Order Araneae.

(n) air-breathing arthropods characterized by simple eyes and four pairs of legs

a species in a class of arthropods which includes mostly air-breathing invertebrates, including spiders, scorpions, mites and ticks. Arachnids have a body with two segments, with the front segment hav [..]

A class of Arthropoda that includes Spiders; Ticks; Mites; and Scorpions.

A category of anthropods that includes spiders, scorpions, tarantulas, ticks and mites.

An arthropod of the class Arachnida, i.e. a spider or scorpion.

A group of animals that have four pairs of legs and a body divided into two segments. Spiders, ticks, scorpions and mites are all arachnids.

<biology> An organism of the class Arachnida in the kingdom Animalia. For example: a spider. (09 Oct 1997)

An arthropod with eight legs such as a spider.

Any of the eight-legged creatures, including spiders and scorpions, of the class ''Arachnida''