adjective
also acheu·li·an əˈshülēən, -ə(r)l-, -ə̄l-
Usage: usually capitalized
Etymology: French acheuléen, from St. Acheul, near Amiens, France, location of the type station + French -éen -ean
: of or belonging to the epoch of the Lower Paleolithic period following Abbevillian and characterized by biface tools with cutting edges all around