noun Chemistry, Pharmacology.
a white, crystalline, water-insoluble, explosive solid, C5H8N4O12, used chiefly as a high explosive and as a vasodilator in treating angina pectoris.
Origin of pentaerythritol tetranitrate
First recorded in 1920–25
Also called PETN
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019