Bible Dictionaries
Transition Zone

Webster's Dictionary

The zone lying between the Boreal and Sonoran zones of North America. It includes an eastern or humid subdivision and a western arid one of corresponding temperature comprising the northern Great Plains and the lower slopes of the mountains of the western United States and Mexico. Called also Neutral zone.

Bibliography Information
Webster, Noah. Entry for 'Transition Zone'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​t/transition-zone.html. 1828.