Meaning of pentaerythritol tetranitrate

pentaeryth'ritol tetrani'trate

Pronunciation: [key]
— Chem., Pharm. Chem.,Pharm.
  1. a white, crystalline, water-insoluble, explosive solid, CHNO, used chiefly as a high explosive and as a vasodilator in treating angina pectoris. Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.