adaptation
ad.ap.ta.tion \.ad-.ap-'ta--sh*n\ \-shn*l, -sh*n-*l\ \-e-\ n 1a: the act or process of adapting 1b: the state of being adapted 2: adjustment to environmental conditions : as 2a: adjustment of a sense organ to the intensity or quality of stimulation 2b: modification of an organism or its parts that fits it better for the conditions of its environment 3: something that is adapted; specif : a composition rewritten into a new form - ad.ap.ta.tion.al aj