1. the process of becoming accustomed to something; habituation
Usage: rare; formal

Examples

• The accustomation to the new climate took several months.
• His accustomation to the night shift was gradual but successful.
• The accustomation process requires patience and persistence.
• After weeks of accustomation, the loud noises no longer bothered her.
• The doctor explained that accustomation to the medication would reduce side effects.