Bible Dictionaries
Planimeter

Webster's Dictionary

(n.) An instrument for measuring the area of any plane figure, however irregular, by passing a tracer around the bounding line; a platometer.

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