ground-truthing
n.— «They use the photos to plot GPS coordinates of questionable places and then hit the water for a closer look. The process is called “ground-truthing.” “The more groundtruthing we do, the better the map’s going to be,” Kolasa said. “A small patch like this could easily be missed by photo interpretations.”» —“Searching for seagrass” by Tony Marrero Hernando Today (Tampa, Florida) July 15, 2007. (source: Double-Tongued Dictionary)
Further reading
If you alternate alcoholic beverages with glasses of water over the course of an evening, you’re said to be zebra striping. This bit of slang was inspired by how the animal’s alternating black-and-white markings are like the contrast between the...
In White Oleander (Bookshop|Amazon), novelist Janet Fitch touts the value of memorizing poetry with these memorable lines: Always learn poems by heart. They have to become the marrow in your bones. Like fluoride in the water, they’ll make your soul...