Pluteuses

1 definition found

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

  Pluteus \Plu"te*us\, n.; pl. L. {Plutei}, E. {Pluteuses}. [L., a
     shed.] (Zool.)
     The free-swimming larva of sea urchins and ophiurans, having
     several long stiff processes inclosing calcareous rods.
     [1913 Webster]