- a colorless, thick, oily, flammable, highly explosive, slightly water-soluble liquid, C3H5N3O9, prepared from glycerol with nitric and sulfuric acids: used chiefly as a constituent of dynamite and other explosives, in rocket propellants, and in medicine as a vasodilator in the treatment of angina pectoris.
Also ni·tro·glyc·er·ine [nahy-truh-glis-er-in, -uh-reen] /ˌnaɪ trəˈglɪs ər ɪn, -əˌrin/.
Origin of nitroglycerin
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for nitroglycerin
Having Lou Dobbs and Rick Kaplan reporting to me at the same time was like holding a canister of nitroglycerin in each hand.What Happened to the Real Lou?
August 5, 2009
Maybe—but so is picric acid; so is nitroglycerin; and so is pure gold.Skylark Three
Edward Elmer Smith
There was also a five-pound bottle of nitroglycerin standing on the bench.
A little inadvertence in the handling of a bottle of nitroglycerin may have been the cause.
There is just as much acid after the glycerin is turned into nitroglycerin as there was before.
Charcoal from cork is said to absorb about 90% of its weight of nitroglycerin.
- A thick, pale yellow liquid that is explosive on concussion or exposure to sudden heat, used as a vasodilator in medicine.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- A thick, pale-yellow, explosive liquid formed by treating glycerin with nitric and sulfuric acids. It is used to make dynamite and in medicine to dilate blood vessels. Chemical formula: C3H5N3O9.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.