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