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From The Collaborative International Dictionary of English v.0.44 [gcide]:
Planorbis \Pla*nor"bis\, noun [NL., fr. L. planus flat + orbis a circle.] (Zo["o]l.) Any fresh-water air-breathing mollusk belonging to {Planorbis} and other allied genera, having shells of a discoidal form.
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Definitions retrieved from local copies of the freely distributed DICT client/server software and databases. Click here for database copyright information. - KM |