Definition of "arginine" []

• An amino acid, C6H14N4O2, obtained from the hydrolysis or digestion of plant and animal protein. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "In this research, arginine is given in pill form to determine if it can reduce or prevent symptoms in people with sickle cell disease."
• "The long-term arginine treatment did not have any adverse effects on either group."
• "Researchers note that pistachios are rich in antioxidants and contain a non-essential amino acid called arginine, which contributes to flexible, more relaxed arteries."