water snail

1 definition found

water snail - Collaborative International Dictionary of English v.0.48 :

  Water snail \Wa"ter snail`\
     1. (Zool.) Any aquatic pulmonate gastropod belonging to
        Planorbis, Limnaea, and allied genera; a pond snail.
        [1913 Webster]
  
     2. (Mech.) The Archimedean screw. [R.]
        [1913 Webster]