acclimation n 1: adaptation to a new climate (a new temperature or altitude or environment) [syn: {acclimatization}, {acclimatisation}, {acclimation}]
Acclimation \Ac`cli*ma"tion\, n. The process of becoming, or the state of being, acclimated, or habituated to a new climate; acclimatization. [1913 Webster]