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Arsaces I

American  
[ahr-suh-seez, ahr-sey-seez] / ˈɑr səˌsiz, ɑrˈseɪ siz /

noun

  1. founder of the Parthian empire c250 b.c.

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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.