arachnid

a·rach·nid  (-rknd)

n.

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. Also called arachnoid.

---

[From New Latin Arachnida, class name, from Greek arakhn, spider.]

---

a·rachni·dan (-n-dn) adj. & n.

---

arachnid [ar-rak-nid]

Noun

an eight-legged insect-like creature, such as a spider, scorpion, or tick [Greek arakhnē spider]

---

arachnid  (-rknd)

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.

Thesaurus

Noun

1.

arachnid - air-breathing arthropods characterized by simple eyes and four pairs of legs arachnoid arthropod - invertebrate having jointed limbs and a segmented body with an exoskeleton made of chitin Arachnida, class Arachnida - a large class of arthropods including spiders and ticks and scorpions and daddy longlegs; have four pairs of walking legs and no wings harvestman, Phalangium opilio, daddy longlegs - spiderlike arachnid with a small rounded body and very long thin legs scorpion - arachnid of warm dry regions having a long segmented tail ending in a venomous stinger false scorpion, pseudoscorpion - small nonvenomous arachnid resembling a tailless scorpion whip scorpion, whip-scorpion - nonvenomous arachnid that resembles a scorpion and that has a long thin tail without a stinger spider - predatory arachnid with eight legs, two poison fangs, two feelers, and usually two silk-spinning organs at the back end of the body; they spin silk to make cocoons for eggs or traps for prey acarine - mite or tick