some of different arthropods regarding the class Arachnida, such as for instance spiders, scorpions, mites, and ticks, described as four sets of segmented feet and a body that is divided into two areas, the cephalothorax and stomach. Also known as arachnoid.
the eight-legged creatures, including spiders and scorpions, regarding the course Arachnida
the Arachnida; an arachnidan.
air-breathing arthropods characterized by quick eyes and four pairs of feet