When a place ruralizes, it becomes more like the countryside, with farms and open land.
Ruralizing can be good if you like the countryside, but it can be bad if you like the city.
Examples:
The city ruralizes as more people move to the countryside.
The new highway will ruralize the area.
He ruralizes the town by building a farm.
The city boy ruralizes the farm with his big city ideas.
The magic spell ruralizes the whole kingdom.
The town ruralizes, and soon there are more cows than people.