What is "araneina"

Arachnida \A*rach"ni*da\, n. pl. [NL., fr. Gr. ? spider.] (Zo["o]l.) One of the classes of Arthropoda. See Illustration in Appendix.

Note: They have four pairs of legs, no antenn[ae] nor wings, a pair of mandibles, and one pair of maxill[ae] or palpi. The head is usually consolidated with the thorax. The respiration is either by tranche[ae] or by pulmonary sacs, or by both. The class includes three principal orders: Araneina, or spiders; Arthrogastra, including scorpions, etc.; and Acarina, or mites and ticks.

Araneina \A*ra`ne*i"na\ ([.a]*r[=a]`n[-e]*[imac]"n[.a]), n. pl. [NL., fr. L. aranea spider.] (Zo["o]l.) The order of Arachnida that includes the spiders.

Note: They have mandibles, modified as poison fangs, leglike palpi, simple eyes, abdomen without segments, and spinnerets for spinning a web. They breathe by pulmonary sacs and trache[ae] in the abdomen. See Illustration in Appendix.