a person who helps take control of an area or a country that is not their own, especially using force, and sends people from their own country to live there
استعمارگر, مهاجر استعمارگر, استعمارچی
2
an animal or plant that lives or grows in large numbers in a particular area
کلنیساز, کلنیکننده, ساکنساز
Saltgrass is the first perennial colonizer of shorelines.