[1] : The Collaborative International Dictionary of English v.0.48

acarina \ac`ari"na\, prop. n. pl. nl., from gr. ? a mite.
   zool.
   the order of arachnida which includes the mites and ticks.
   many species are parasitic, and cause diseases like the itch
   and mange.
   1913 webster

[2] : The Collaborative International Dictionary of English v.0.48

arachnida \arach"nida\, 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 antennae nor wings,
         a pair of mandibles, and one pair of maxillae or
         palpi. the head is usually consolidated with the
         thorax. the respiration is either by trancheae 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
see also:
araneina arthrogastra acarina 

[3] : WordNet (r) 2.0

acarina
     n : mites and ticks syn: order acarina
see also:
order acarina 

Acarina >> A Words
Acarina, definition of term: Acarina
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