Zulu timen.1. See coordinated universal time.2. See universal time.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.ZULU timeSee: Universal Time.Dictionary of Military and Associated Terms. US Department of Defense 2005.