verb (used with object), ter·ri·to·ri·al·ized, ter·ri·to·ri·al·iz·ing.
- to extend by adding new territory.
- to reduce to the status of a territory.
- to make territorial.
- to make a territory of
- to place on a territorial basisthe militia was territorialized
- to enlarge (a country) by acquiring more territory
- to make territorial