Added 10 October 2026 paleolithic noun Categories: TimeRare Words noun ! Definition from WordNet 3.1, Princeton University. More about paleolithic at Wordnik → Where our words come from → Second part of the Stone Age beginning about 750,000 to 500,000 years BC and lasting until the end of the last ice age about 8,500 years BC. adjective Of or relating to the second period of the Stone Age (following the eolithic). paleolithic artifacts Related Words: palaeolithicneolithicpaleoarcheanpaleogeneepipaleolithicpalaeolitharchaeozoicleptolithic Back to today's word