ˈriˈs]wərm, ]wu̇(ə)rm, ]vi(ə)rm, G ]vuerm noun
( -s )
Usage: usually capitalized R&W
Etymology: from the Riss river, a tributary of the Danube in southwestern Germany, and the Würm, a small stream of southern Bavaria, Germany
: the third interglacial interval during the Pleistocene glaciation of Europe