leucoplast definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
any of the colorless granules found in the protoplasm of vegetable cells in which starch forms in the absence of light
Origin: leuco- plush -plast
leucoplast definition by American Heritage Dictionary
A colorless plastid in the cytoplasm of plant cells around which starch collects.