a. [ L. territorialis: cf. F. territorial. ] 1. Of or pertaining to territory or land; as, territorial limits; territorial jurisdiction. [ 1913 Webster ]

2. Limited to a certain district; as, right may be personal or territorial. [ 1913 Webster ]

3. Of or pertaining to all or any of the Territories of the United States, or to any district similarly organized elsewhere; as, Territorial governments. [ 1913 Webster ]

4. (Zool.) exhibiting territoriality; -- of individual animals or species. [ PJC ]

n. (Zool.) a pattern of behavior characterized by the marking and defense of a home territory, exhibited by certain male animals. [ WordNet 1.5 +PJC ]

v. t. [ imp. & p. p. Territorialized p. pr. & vb. n. Territorializing ] 1. To enlarge by extension of territory. [ 1913 Webster ]

2. To reduce to the condition of a territory. [ 1913 Webster ]

adv. In regard to territory; by means of territory. [ 1913 Webster ]

. (Internat. Law) The waters under the territorial jurisdiction of a state; specif., the belt (often called the
marine belt or
territorial sea) of sea subject to such jurisdiction, and subject only to the right of innocent passage by the vessels of other states.

Perhaps it may be said without impropriety that a state has theoretically the right to extend its territorial waters from time to time at its will with the increased range of guns. Whether it would in practice be judicious to do so . . . is a widely different matter . . . . In any case the custom of regulating a line three miles from land as defining the boundary of marginal territorial waters is so far fixed that a state must be supposed to accept it in absence of express notice. W. E. Hall. [ Webster 1913 Suppl. ]