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Calx vs Calciform - What's the difference?

calx | calciform |

As a noun calx

is (archaic) the substance which remains after a metal or mineral has been thoroughly burnt, seen as being the essential substance left after the expulsion of phlogiston.

As an adjective calciform is

having the form of calx, chalk or lime.

calx

English

(wikipedia calx)

Noun

(en-noun)
  • (archaic) The substance which remains after a metal or mineral has been thoroughly burnt, seen as being the essential substance left after the expulsion of phlogiston.
  • (Now recognised as being) the oxide left after calcination of a metal.
  • calcium oxide
  • In the Eton College wall game, an area at the end of the field where a shy can be scored by lifting the ball against the wall with one's foot.

    • calciform

    English

    Adjective

    (en adjective)
  • Having the form of calx, chalk or lime