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Mith·ras(mĭth′rəs) or Mith·ra (-rə)
The ancient Persian god of light and guardian against evil, often identified with the sun.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.