Chinese daten. See jujube.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.Chi?nese date? n. 1. an Old World tree, Ziziphus jujuba, of the buckthorn family, that thrives in hot, dry regions. 2. the edible plumlike fruit of this tree. Also called jujube. [1935?40, Amer.] Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.