acclimatization vs acclimatisation

acclimatization and acclimatisation both are nouns.

Word	Noun	Adjective	Verb	Adverb
acclimatization	Yes	No	No	No
acclimatisation	Yes	No	No	No

As nouns, acclimatization and acclimatisation are synonyms defined as:

acclimatization and acclimatisation: adaptation to a new climate (a new temperature or altitude or environment)

Other synonyms of acclimatization include acclimation.

acclimatization (noun)	acclimatisation (noun)
adaptation to a new climate (a new temperature or altitude or environment)	adaptation to a new climate (a new temperature or altitude or environment)