acarid

from WordNet (r) 3.0 (2006)
acarid
    n 1: very small free-living arachnid that is parasitic on
         animals or plants; related to ticks
    
from The Collaborative International Dictionary of English v.0.48
acarid \acarid\ n.
   1. very small free-living arachnid that is parasitic on
      animals or plants; related to ticks.
      [WordNet 1.5]
    

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