What is another word for isarithm?
Pronunciation: [ˈɪsɑːɹˌɪθəm] (IPA) 
An isarithm is a line on a map that joins points of equal value. Synonyms for isarithm include contour line, isopleth, and isogram. These terms are commonly used in geography and cartography to represent elevation, temperature, rainfall and other natural phenomena. Isopleths, for example, are used to represent changes in temperature across a defined area, while contour lines represent changes in elevation. Other synonyms for isarithm include isoquant, which represents an equal quantity, and isochrone, which represents an equal duration of travel time. Overall, isarithms and their synonyms are fundamental tools in understanding and interpreting geographic data.
