Our online medical glossary of medical terms and definitions includes definitions for terms related to treatment, and general medicine
ARANEINA
The order of Arachnida that includes the spiders.
They have mandibles, modified a poison fags, leglike palpi, simple eyes, abdomenwithout segments, and spinnerets for spinning a web. They breathe by pulmonary sacs and tracheae in the abdomen.
Origin: NL, fr. L. Aranea spider.
Source: Websters Vocabulary