relating to or characteristic of the climatic zone south of the Arctic, especially the cold temperate region dominated by taiga and forests of birch, poplar, and conifers
relating to or denoting a phytogeographical kingdom comprising the arctic and temperate regions of Eurasia and North America
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