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arachnida

arachnida in Medicine

Arachnida A·rach·ni·da (ə-rāk'nĭ-də)
n.
A class of arthropods that includes spiders, scorpions, mites, and ticks.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Examples for arachnida
  • Unlike the majority of arachnida species, scorpions are viviparous.

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