adjective
also al·le·gha·ni·an |alə|gānēən, -nyən, -|gen-
Usage: usually capitalized
Etymology: Alleghany, Alleghany mts. + English -an
1. : allegheny 1
2. : relating to or constituting the humid division of the biogeographic Transition zone that extends across the northern United States from New England to eastern No. and So. Dakota and includes also most of Pennsylvania and the mountainous region as far south as northern Georgia