nebuliser vs nebulizer

nebuliser and nebulizer both are nouns.

Word	Noun	Adjective	Verb	Adverb
nebuliser	Yes	No	No	No
nebulizer	Yes	No	No	No

As nouns, nebuliser and nebulizer are synonyms defined as:

nebuliser and nebulizer: a dispenser that turns a liquid (such as perfume) into a fine mist

Other synonyms of nebuliser include atomiser, atomizer, spray, sprayer.

nebuliser (noun)	nebulizer (noun)
a dispenser that turns a liquid (such as perfume) into a fine mist	a dispenser that turns a liquid (such as perfume) into a fine mist