(ˈ)ka|skādēən adjective
Usage: usually capitalized
Etymology: Cascadian (revolution, a group of earth movements that uplifted the mountain ranges of the Pacific coast of No. America, from Cascadia, hypothetical land mass along western border of No. America (from Cascade Range) + English -an
: of or relating to mountain-making movements in the Cenozoic era — see geologic time table