(ˈ)che|stirēən adjective
Usage: usually capitalized
Etymology: Chester, Ill. + English -ian
: of or relating to a division of the Mississippian geologic period — see geologic time table
(ˈ)che|stirēən adjective
Usage: usually capitalized
Etymology: Chester, Ill. + English -ian
: of or relating to a division of the Mississippian geologic period — see geologic time table
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012