The DICT Development Group

  Isopoda \I*sop"o*da\, n. pl. [NL. See Iso-, and -poda.]
     (Zool.)
     An order of sessile-eyed Crustacea, usually having seven
     pairs of legs, which are all similar in structure.
     [1913 Webster]
  
     Note: The body is usually depressed, with the abdominal
           segments short, and often consolidated in part. The
           branchi[ae] are on the abdominal appendages. The group
           includes the terrestrial pill bugs and sow bugs, with
           numerous marine forms. See Arthrostrata, Gribble.
           [1913 Webster]

  Isopoda
      n 1: woodlice [syn: Isopoda, order Isopoda]