1.NounThe act of acclimatizing; the process of inuring to a new climate, or the state of being so inured.
"The expedition paused to allow for proper acclimatization at base camp.; Acclimatization to extreme climates is essential for survival.; The scientist studied the acclimatization of plants introduced into new environments."
2.NounThe climatic adaptation of an organism that has been moved to a new environment.