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

tardigrada \tar`digra"da\, n. pl. nl. see tardigrade, a.
   1. zool. a tribe of edentates comprising the sloths. they
      are noted for the slowness of their movements when on the
      ground. see sloth, 3.
      1913 webster

   2. zool. an order of minute aquatic arachnids; -- called
      also bear animalcules, sloth animalcules, and water
      bears.
      1913 webster
see also:
tardigrade sloth bear animalcules sloth animalcules water bears 

[2] : WordNet (r) 2.0

tardigrada
     n : in some classifications considered a separate phylum:
         microscopic arachnid-like invertebrates living in water
         or damp moss having 4 pairs of legs and instead of a
         mouth a pair of stylets or needle-like piercing organs
         connected with the pharynx syn: class tardigrada
see also:
class tardigrada 

Tardigrada >> T Words
Tardigrada, definition of term: Tardigrada
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