calx

American  

[kalks] / kælks /

noun

calxes, plural calces plural

1. the oxide or ashy substance that remains after metals, minerals, etc., have been thoroughly roasted or burned.

2. lime.

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calx British  

/ kælks /

noun

1. the powdery metallic oxide formed when an ore or mineral is roasted

2. another name for calcium oxide

3. anatomy the heel

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Etymology

Origin of calx

1350–1400; late Middle English < Latin: lime; replacing Middle English cals < Old French < Latin

Example Sentences

The metal, said Lavoisier, decomposes the water which is always present along with the acid, hydrogen is thus evolved, and the metallic calx or oxide so produced dissolves in the acid and forms a salt.

From Heroes of Science Chemists by Muir, M. M. Pattison (Matthew Moncrieff Pattison)

It contains much of the calx of manganese, and iron; but when the substance is pulverized, these are easily dissolved, and the calx of wolfram is found to be yellow.

From Heads of Lectures on a Course of Experimental Philosophy: Particularly Including Chemistry by Priestley, Joseph

To make glass perfectly colourless, and at the same time more dense, commonly called flint glass, manufacturers use a certain proportion of calx of lead and manganese.

From Heads of Lectures on a Course of Experimental Philosophy: Particularly Including Chemistry by Priestley, Joseph

Its calx is soluble in water, like that of arsenic.

From Heads of Lectures on a Course of Experimental Philosophy: Particularly Including Chemistry by Priestley, Joseph

United with the calx of lead, it is used in painting.

From Heads of Lectures on a Course of Experimental Philosophy: Particularly Including Chemistry by Priestley, Joseph