trigeneration [trī′jĕn′ə-rā′shən] A process in which an industrial facility uses its waste energy to produce heat or electricity as well as cooling. Compare cogeneration. Liberaldictionary.com Is It Time For All Couples To Use The Term Partner? Can You Translate These Famous Phrases From Emoji? These Are the Longest Words in English These Are the Saddest Phrases in English The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.