Araneina (&adot_;rān&euptack_;īn&adot_;), n. pl. [NL., fr. L. aranea spider.] (Zoöl.) The order of Arachnida that includes the spiders.
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&hand_; 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 tracheæ in the abdomen. See Illustration in Appendix.
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