WordReference Random House Unabridged Dictionary of American English © 2026
ter•ri•to•ri•al•ize
(ter′i tôr′ē ə līz′, -tōr′-),USA pronunciation v.t., -ized, -iz•ing.
ter′ri•to′ri•al•i•za′tion, n.
- to extend by adding new territory.
- to reduce to the status of a territory.
- to make territorial.
- territorial + -ize 1810–20