From Longman Dictionary of Contemporary Englishinternalizein‧ter‧nal‧ize (also internalise British English) /ɪnˈtɜːnəlaɪz $ -ɜːr-/ AWL verb [transitive] IN/INSIDEif you internalize a particular belief, attitude, behaviour etc, it becomes part of your character —internalization /ɪnˌtɜːnəlaɪˈzeɪʃən $ ɪnˌtɜːrnələ-/ noun [uncountable]→ See Verb table
Examples from the Corpus
internalize• At the end of colonial rule, many of the people had internalized foreign values.• Girls tend to internalize their fears, sometimes to the point of making themselves sick.From Longman Business Dictionaryinternalizein‧ter‧nal‧ize /ɪnˈtɜːnəlaɪz-ɜːr-/ (also internalise British English) verb [transitive]COMMERCEMANUFACTURING to include a particular cost in the manufacture of something so that the cost will not need to be paid by someone else laterWe want to encourage manufacturers to produce things that are as safe as they can be, so internalizing the cost of injury prevention.→ See Verb table