[al-yuh-rohn, uh-loor-ohn]
noun (in the seeds of cereal plants)
protein granules (aleurone grains) found in a single layer of cells (aleurone layer) in the outermost portion of the endosperm.
Also, aleuron [al-yuh-ron, uh-loor-on] .

1865–70; < Greek áleuron flour, meal

aleuronic [al-yoo-ron-ik] , adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To aleurone

granular protein in outermost layer of endosperm of many seeds or cereal grains 
WordNet® 3.0, © 2006 by Princeton University.
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Example sentences for aleurone
Bran is the hard outer layer of grain and consists of combined aleurone and pericarp.
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