to be habituated to sth
1habituate — ha|bit|u|ate [həˈbıtʃueıt] v be/become habituated to (doing) sth formal to be used to something or gradually become used to it ▪ Over the centuries, these animals have become habituated to living in a dry environment …
2habituate — verb be /become habituated to (doing sth) formal to be or gradually become used to something: Over the centuries, these animals have become habituated to living in such a dry environment …