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leu·ko·plast(lo͞o′kə-plăst′) also leu·co·plast (lo͞o′kə-plăst′)
A colorless plastid in the cytoplasm of plant cells around which starch collects.
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.
(Biochemistry) any of the small colourless bodies occurring in the cytoplasm of plant cells and used for storing food material, esp starch
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
a starch-storing colorless plastid in the cells of roots and underground or internal plant parts.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.