1. granting citizenship to a foreign-born person
Usage: present participle of naturalize
2. introducing a plant or animal to a new environment where it becomes established
Usage: present participle of naturalize; biology
3. making something seem natural or normal
Usage: present participle of naturalize

Examples

• The government is naturalizing hundreds of immigrants this year.
• She is naturalizing as an American citizen next month.
• The botanist is studying the process of naturalizing exotic plants.
• European starlings are naturalizing across North America.
• The author is naturalizing complex scientific concepts for general readers.
• They are naturalizing foreign customs into local traditions.