choropleth map
Syllabification: (chor·o·pleth map)
Pronunciation: /ˈkôrəˌpleTH/
Definition of choropleth map
noun
- a map that uses differences in shading, coloring, or the placing of symbols within predefined areas to indicate the average values of a property or quantity in those areas. Compare with isopleth.
Origin:
1930s: choropleth from Greek khōra 'region' + plēthos 'multitude'