Definition of "glyceryl" [glyc•er•yl]

• A trivalent radical, CH2CHCH2, obtained from glycerol by the removal of hydroxyl groups. (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.

• "A prescription for nitroglycerin sometimes called glyceryl trinitrate, prescribed for some heart conditions, is a contraindication for Viagra."
• "There's a bit of anecdotal evidence that TSA explosive detectors will indeed false-positive on people who have handled glyceryl trinitrate pills."
• "Fragrances are the main culprits, but preservatives, chemicals such as p-phenylenediamine and glyceryl monothioglycolate, UV sunscreens, resins, and nail acrylates cause many allergic reactions."