As used in this chapter, unless the context indicates otherwise, the following terms have the following meanings.
1. Unorganized territory. "Unorganized territory" means territory not part of a municipality.
2. Unorganized unit. "Unorganized unit" means an unorganized township, gore, strip, tract, surplus, point, patent, peninsula, island, deorganized town or plantation or any other distinct portion of the unorganized territory.