calcination vs oxidation

calcination and oxidation both are nouns.

Word	Noun	Adjective	Verb	Adverb
calcination	Yes	No	No	No
oxidation	Yes	No	No	No

As nouns, oxidation is a hypernym of calcination; that is, oxidation is a word with a broader meaning than calcination:

calcination: the conversion of metals into their oxides as a result of heating to a high temperature
oxidation: the process of oxidizing; the addition of oxygen to a compound with a loss of electrons; always occurs accompanied by reduction

Other hypernyms of calcination include oxidisation, oxidization.

calcination (noun)	oxidation (noun)
the conversion of metals into their oxides as a result of heating to a high temperature	the process of oxidizing; the addition of oxygen to a compound with a loss of electrons; always occurs accompanied by reduction