Any of the salts of permanganic acid, all of which are strong oxidizing agents.(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.
Use "permanganate" in a sentence
"The purple looks like potassium permanganate, which is a strong oxidizer."
"More accurate results are obtained by using a very dilute solution of potassium permanganate, which is decomposed by amyl alcohol much more rapidly than by ethyl alcohol."
"You can use soap or a chemical product such as permanganate of potash or cresol."