"paleolithic" in the noun sense
1. Paleolithic Age, Paleolithic, Palaeolithic
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
"paleolithic" in the adjective sense
1. paleolithic, palaeolithic
of or relating to the second period of the Stone Age (following the eolithic
"paleolithic artifacts"
Source: WordNet® (An amazing lexical database of English)
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