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caliche

[kuh-lee-chee] /kəˈli tʃi/
noun, Geology
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.
Compare duricrust, hardpan.
Origin of caliche
1855-1860
1855-60; < Spanish: flake of lime, equivalent to cal lime (< Latin calc-; see chalk) + -iche noun suffix
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for caliche

caliche

/kæˈliːtʃɪ/
noun
1.
Also called calcrete. a bed of sand or clay in arid regions cemented by calcium carbonate, sodium chloride, and other soluble minerals
2.
a surface layer of soil encrusted with calcium carbonate, occurring in arid regions Also called duricrust
Word Origin
C20: from American Spanish, from Latin calx lime
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for caliche
n.

sodium nitrate deposits in Chile and Peru, 1858, from American Spanish, from Spanish caliche "pebble in a brick," from Latin calx "pebble" (see chalk (n.)).

Online Etymology Dictionary, © 2010 Douglas Harper
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caliche in Science
caliche
  (kə-lē'chē)   
See hardpan.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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