- a hardened conglomeration of gravel, rock, and soil that contains sodium nitrate, potassium nitrate, etc., found mainly in arid regions of Chile and Argentina
- a type of hardpan found in arid regions, as in the SW U.S., containing calcareous deposits, esp. of calcium carbonate
Origin of calicheAmerican Spanish from Spanish cal, lime from Classical Latin calx: see calcium
- a. A mineral deposit rich in sodium nitrate occurring naturally in Chile, Peru, and the southwest United States, and used as fertilizer, in explosives, and as a raw material for manufacturing nitric acid.b. See sodium nitrate.
- a. The accretions of calcium carbonate in soil.b. See hardpan.
Origin of calicheAmerican Spanish from Spanish pebble in a brick, flake of lime from cal lime from Latin calx calc- lime ; see calx .