1Of, relating to, or denoting the fourth climatic stage of the postglacial period in northern Europe, between the Atlantic and Sub-Atlantic stages (about 5,000 to 2,800 years ago). The stage corresponds to the Neolithic period and Bronze Age, and the climate was cooler and drier than previously but still warmer than today.
More example sentences
- He came up with the theory that as the earth began to heat up, water sources evaporated during the Sub-Boreal period.
Definition of Sub-Boreal in:
- The British & World English dictionary