Elasmopoda

from The Collaborative International Dictionary of English v.0.48
Elasipoda \El`a*sip"o*da\, n. pl. [NL., fr. Gr. ? metal beaten
   out, metal plate + -poda.] (Zo["o]l.)
   An order of holothurians mostly found in the deep sea. They
   are remarkable for their bilateral symmetry and curious
   forms. [Written also {Elasmopoda}.]
   [1913 Webster]
    

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