nounusually as modifier
The most recent interglacial period of the Pleistocene in northern Europe, preceding the Weichsel glaciation and corresponding to the Ipswichian in Britain.‘Eem represents the previous interglacial period.’‘The travertine of Burgtonna was formed since the Eem interglazial.’
- 1.1The system of deposits laid down during the Eem interglacial period.
Early 20th century from the name of a river in the Netherlands.
Are You Learning English? Here Are Our Top English Tips