Tez·cat·li·po·ca (t?s-kät?l?-p??kä)n. Mythology The Toltec and Aztec god of darkness and discord, sometimes represented as a jaguar, who was worshiped as co-creator of the world along with his adversary Quetzalcoatl.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.