[1] : The Collaborative International Dictionary of English v.0.48

calx \calx\, n.; pl. e. calxes, l. calces. l. calx, calcis.
   limestone; cf. gr. ? gravel. ?, ?, pebble, skr. ? gravel, ir.
   carraic rock gael. carraig, w. careg, stone. cf. chalk.
   1913 webster
   1. chem.
      a quicklime. obs.
      b the substance which remains when a metal or mineral
          has been subjected to calcination or combustion by
          heat, and which is, or may be, reduced to a fine
          powder.
          1913 webster

   note: metallic calxes are now called oxides.
         1913 webster

   2. broken and refuse glass, returned to the post.
see also:
calxes calces chalk 

[2] : WordNet (r) 2.0

calx
     n : a white crystalline oxide used in the production of calcium
         hydroxide syn: calcium oxide, quicklime, lime, calcined
         lime, fluxing lime, unslaked lime, burnt lime
     also: calces pl
see also:
calcium oxide quicklime lime calcined lime fluxing lime unslaked lime 
burnt lime calces 

[3] : Moby Thesaurus II by Grady Ward, 1.0

21 moby thesaurus words for "calx":
   ash, ashes, brand, carbon, charcoal, cinder, clinker, coal, coke,
   coom, dross, fume, lava, reek, scoria, slag, smoke, smudge, smut,
   soot, sullage

Calx >> C Words
Calx, definition of term: Calx
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