Gini index
n.— «The Census Bureau measures income disparity through an established method called the Gini index—named after Italian statistician Corrado Gini. The index measures the gap among incomes of all households.» —“Income gap closes in rural suburbs, Census says” by Haya El Nasser, Paul Overberg USA Today Sept. 13, 2007. (source: Double-Tongued Dictionary)
Further reading
Astronauts returning from space say they experience what’s called the overview effect, a new understanding of the fragility of our planet and our need to reflect on what humans all share as a species. A book about the end of the universe...
Joan from Buffalo, New York, wants to know how to spell a particular word that means to spiff up, clean up, straighten, or fix. The word is zhuzh, which has had dozens of different spellings over the years because it’s primarily transmitted...