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[kalks] /kælks/
noun, plural calxes, calces
[kal-seez] /ˈkæl siz/ (Show IPA)
the oxide or ashy substance that remains after metals, minerals, etc., have been thoroughly roasted or burned.
lime1 (def 1).
Origin of calx
late Middle English
1350-1400; late Middle English < Latin: lime; replacing Middle English cals < Old French < Latin Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for calx


noun (pl) calxes, calces (ˈkælsiːz)
the powdery metallic oxide formed when an ore or mineral is roasted
another name for calcium oxide
(anatomy) the heel
Word Origin
C15: from Latin: lime, from Greek khalix pebble
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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calx in Medicine

calx (kālks)
n. pl. calx·es or cal·ces (kāl'sēz')

  1. The crumbly residue left after a mineral or metal has been calcined or roasted.

  2. The posterior rounded extremity of the foot; the heel.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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