[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 

Sloth >> S Words
Sloth, definition of term: Sloth
sloth_pag1.html

Sloth Bear >> S Words
Sloth Bear, definition of term: Sloth Bear
sloth+bear_pag1.html

Two-Toed Sloth >> T Words
Two-Toed Sloth, definition of term: Two-Toed Sloth
two-toed+sloth_pag1.html