Akademik

arachnid

n. any arthropod of the class Arachnida, having four pairs of walking legs and characterized by simple eyes, e.g. scorpions, spiders, mites, and ticks.
Derivatives:
arachnidan adj. & n.
Etymology: F arachnide or mod.L arachnida f. Gk arakhne spider

Useful english dictionary. 2012.