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pre-Incan

American  
[pree-ing-kuhn] / priˈɪŋ kən /

adjective

  1. of or relating to the period preceding the Incan empire in Peru.

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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.