oxidisation vs rusting

oxidisation and rusting both are nouns.

Word	Noun	Adjective	Verb	Adverb
oxidisation	Yes	No	No	No
rusting	Yes	No	No	No

As nouns, rusting is a hyponym of oxidisation; that is, rusting is a word with a more specific, narrower meaning than oxidisation:

oxidisation: the process of oxidizing; the addition of oxygen to a compound with a loss of electrons; always occurs accompanied by reduction
rusting: the formation of reddish-brown ferric oxides on iron by low-temperature oxidation in the presence of water

Other hyponyms of oxidisation include calcination, burning, combustion, nitrification, rust.

oxidisation (noun)	rusting (noun)
the process of oxidizing; the addition of oxygen to a compound with a loss of electrons; always occurs accompanied by reduction	the formation of reddish-brown ferric oxides on iron by low-temperature oxidation in the presence of water