vulcaniser vs vulcanizer

vulcaniser and vulcanizer both are nouns.

Word	Noun	Adjective	Verb	Adverb
vulcaniser	Yes	No	No	No
vulcanizer	Yes	No	No	No

As nouns, vulcaniser and vulcanizer are synonyms defined as:

vulcaniser and vulcanizer: a device used for the vulcanization of rubber.

As nouns, vulcaniser and vulcanizer are synonyms defined as:

vulcaniser and vulcanizer: someone who vulcanizes rubber to improve its strength and resiliency

vulcaniser (noun)	vulcanizer (noun)
a device used for the vulcanization of rubber.	a device used for the vulcanization of rubber.
someone who vulcanizes rubber to improve its strength and resiliency	someone who vulcanizes rubber to improve its strength and resiliency