Cartogram meaning

kär'tə-grăm'
A presentation of statistical data in geographical distribution on a map.
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A map giving statistical data by means of lines, dots, shaded areas, etc.
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(dated) Generally, a map used to indicate geographically-bound statistical information, typically region-by-region values of a given variable, for example by using different shadings for different ranges of values.
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Specifically, a map-like graph where the relative areas of graph regions are proportional not to the relative areas of the land regions they represent, but rather to another quantitative variable, such as population or gross domestic product.
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Origin of cartogram

  • French cartogramme carte map (from Old French card) (from Latin charta, carta paper made from papyrus card1) -gramme a record (from Late Latin gramma something written –gram)
    From American Heritage Dictionary of the English Language, 5th Edition