hardpan
- n crust or layer of hard subsoil encrusted with calcium-carbonate occurring in arid or semiarid regions
- The car stopped on a deserted stretch of flat hardpan, screened by a few cacti and greasewood shrubs, and its five occupants got out: four young Negroes and a short, once-paunchy .
- In person, he is a small, unprepossessing, pigeon-toed man with golden pince-nez and the hardpan face of a gravedigger.
- Most of the fringe rice farmers have stopped trying to scratch a living out of the hardpan topsoil in the Texas Gulf Coast area.