DICT.TW Dictionary Taiwan

 swim·mer·et /ˌswɪməˈrɛt, ˈswɪməˌ/
 游水器

 Swim·mer·et n. Zool. One of a series of flat, fringed, and usually bilobed, appendages, of which several pairs occur on the abdominal somites of many crustaceans. They are used as fins in swimming.
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 swimmeret
      n : one of the paired abdominal appendages of certain aquatic
          crustaceans that function primarily for carrying the eggs
          in females and are usually adapted for swimming [syn: pleopod]