flipper

Definitions of flipper
  1. noun
    the flat broad limb of aquatic animals specialized for swimming
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    type of:
    limb
    one of the jointed appendages of an animal used for locomotion or grasping: arm; leg; wing; flipper
  2. noun
    a shoe for swimming; the paddle-like front is an aid in swimming (especially underwater)
    synonyms: fin
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    type of:
    shoe
    footwear shaped to fit the foot (below the ankle) with a flexible upper of leather or plastic and a sole and heel of heavier material
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