1. noun /ˈpeɪl.ɪi.əʊˌlɪɵ.ɪk,ˈpæl.ɪi.oʊˌlɪɵ.ɪk/
A period that lasted from two and a half million years ago to 10,000 BC; the Old Stone Age.
Syn: Old Stone Age
See Also: lith
2. adjective /ˈpeɪl.ɪi.əʊˌlɪɵ.ɪk,ˈpæl.ɪi.oʊˌlɪɵ.ɪk/
Wikipedia foundation.