Definition of "coenzyme" [co•en•zyme]

• A nonproteinaceous organic substance that usually contains a vitamin or mineral and combines with a specific protein, the apoenzyme, to form an active enzyme system. (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.

• "~ Low-Dose CoQ10 Supplements Won't Ease Parkinson's (HealthDay) -- "Low doses of an antioxidant called coenzyme Q10 (CoQ10), sold as a dietary supplement, do not appear to improve Parkinson's disease symptoms, a German study finds.""
• "The analysis included breast milk at several stages of breast-feeding - from the first colostrum to mature milk - and covered both known antioxidants like tocopherol and a newly discovered nutrient called coenzyme Q10."
• "The substance being tested, called coenzyme Q10, is produced naturally in the body and is an important link in the chain of chemical reactions that produce energy in mitochondria, the"