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Middle Stone Age

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noun Anthropology.
  1. the Mesolithic period.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

middle stone age in Science

Middle Stone Age

  1. See Mesolithic.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.