acclimatisation vs adaptation

acclimatisation and adaptation both are nouns.

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

As nouns, adaptation is a hypernym of acclimatisation; that is, adaptation is a word with a broader meaning than acclimatisation:

acclimatisation: adaptation to a new climate (a new temperature or altitude or environment)
adaptation: the process of adapting to something (such as environmental conditions)

Other hypernyms of acclimatisation include adaption, adjustment.

acclimatisation (noun)	adaptation (noun)
adaptation to a new climate (a new temperature or altitude or environment)	(physiology) the responsive adjustment of a sense organ (as the eye) to varying conditions (as of light)
	a written work (as a novel) that has been recast in a new form
	the process of adapting to something (such as environmental conditions)