mesolithic

Adjective
  1. Of or relating to a middle period of the Stone Age (following the paleolithic) (synset 303101409)
Noun
  1. Middle part of the Stone Age beginning about 15,000 years ago (synset 115258036)
    is an instance of: period, period of time, time period - an amount of time
    is a part of: stone age - (archeology) the earliest known period of human culture, characterized by the use of stone implements
    same as: epipaleolithic, mesolithic age

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