Search Result for "arthrogastra": 

The Collaborative International Dictionary of English v.0.48:

Arachnida \A*rach"ni*da\, n. pl. [NL., fr. Gr. ? spider.] (Zool.) One of the classes of Arthropoda. See Illustration in Appendix. [1913 Webster] 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. [1913 Webster]
The Collaborative International Dictionary of English v.0.48:

Arthrogastra \Ar`thro*gas"tra\, n. pl. [NL., fr. Gr. 'a`rqron joint + ? stomach.] (Zool.) A division of the Arachnida, having the abdomen annulated, including the scorpions, harvestmen, etc.; pedipalpi. [1913 Webster]