-rən adjective
Usage: usually capitalized
Etymology: Niagara River + English -an
: of or relating to a division of the American Silurian — see geologic time table
-rən adjective
Usage: usually capitalized
Etymology: Niagara River + English -an
: of or relating to a division of the American Silurian — see geologic time table
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012