the.com/food desert

means An area, often low-income, where residents have little or no nearby access to affordable, fresh, healthy food like fruits and vegetables.

from A modern policy term, generally traced to early 1990s Britain — reportedly coined or popularized in Scotland around 1990 within public health and government circles discussing food access — before crossing into American urban-planning and public-health vocabulary. It borrows 'desert' not for sand but for scarcity: a landscape where a basic resource simply doesn't grow, geographically mapped onto supermarkets rather than rainfall.