Pronunciation: (ku-lē'chē), [key]
1. a surface deposit consisting of sand or clay impregnated with crystalline salts such as sodium nitrate or sodium chloride.
2. a zone of calcium carbonate or other carbonates in soils of semiarid regions.Cf. duricrust, hardpan.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.