Bible Dictionaries
Planorbis

Webster's Dictionary

(n.) Any fresh-water air-breathing mollusk belonging to Planorbis and other allied genera, having shells of a discoidal form.

Bibliography Information
Webster, Noah. Entry for 'Planorbis'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​p/planorbis.html. 1828.