: a white crystalline compound K2SO4 used especially as a fertilizer
Example Sentences
Recent Examples on the WebThe only catch: Check the label for preservatives like potassium sulfate or sodium benzoate, both of which can kill the yeast required for fermentation. Justin Pot, WSJ, 7 Sep. 2022 Minerals obtained today are used for road and softener salt, magnesium chloride for steel production, and potassium sulfate for fertilizer.The Salt Lake Tribune, 20 May 2022 Three of the derailed cars were carrying potassium sulfate, which is used to make fertilizer.oregonlive, 29 Sep. 2019
Word History
First Known Use
1869, in the meaning defined above
Medical Definition
potassium sulfate
noun
: a white crystalline compound K2SO4 which has been used medicinally as a cathartic