Definitions for "Mesolithic"
an Old World chronological period beginning around 10,000 years ago, situated between the Paleolithic and the Neolithic, and associated with the rise to dominance of microliths.
7000-4000BC (Britain) See TIMELINE
( Gr. 'meso'=middle + 'lithos'=stone) The period between the Palaeolithic and Neolithic periods, in the Old World spanning approx. 11,000 to 8000 BP.
7000-3000 BC. In this period the climate got much warmer. Forests spread across the landscape, and wild animals and plants flourished. People moved around the landscape and used these natural resources. They used flint to make tools.