'Paleolithic' definitions:

Definition of 'paleolithic'

(from WordNet)
adjective
Of or relating to the second period of the Stone Age (following the eolithic); "paleolithic artifacts" [syn: paleolithic, palaeolithic]
noun
Second part of the Stone Age beginning about 750,00 to 500,000 years BC and lasting until the end of the last ice age about 8,500 years BC [syn: Paleolithic Age, Paleolithic, Palaeolithic]

Definition of 'Paleolithic'

From: GCIDE
  • Paleolithic \Pa`le*o*lith"ic\ (p[=a]`l[-e]*[-o]*l[i^]th"[i^]k), a. (Geol.) Of or pertaining to an era marked by early stone implements. The Paleolithic era (as proposed by Lubbock) includes the earlier half of the "Stone Age;" the remains belonging to it are for the most part of extinct animals, with relics of human beings. [1913 Webster]