Here's Googles definitions.
Become accustomed to a new climate or to new conditions
it will take a few days to get acclimated to the altitude
Respond physiologically or behaviorally to a change in a single environmental factor
trees may acclimate to high CO2 levels by reducing the number of stomata
they acclimatized themselves before ascending Everest
Respond physiologically or behaviorally to changes in a complex of environmental factors
"Hey, careful, man, there's a beverage here!"
- The Dude, Lebowski