copper sulfate

noun

Definition of copper sulfate 

: a sulfate of copper especially : the normal sulfate that is white in the anhydrous form but blue in the crystalline hydrous form CuSO4·5H2O and that is often used as an algicide and fungicide

Examples of copper sulfate in a Sentence

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One that organic gardeners all over the world know is the fungicide Bordeaux mix, with copper sulfate as the main ingredient. Jo Ellen Meyers Sharp, Indianapolis Star, "The Hoosier Gardener: Trip to Bordeaux wine country is an educational experience," 13 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'copper sulfate.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of copper sulfate

1869, in the meaning defined above

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The first known use of copper sulfate was in 1869

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More Definitions for copper sulfate

copper sulfate

noun

Medical Definition of copper sulfate 

: a sulfate of bivalent copper that is best known as the blue crystalline hydrate CuSO4·5H2O, is used as an algicide and fungicide, and has been used medicinally in solution as an emetic but is not now recommended for such use because of its potential toxicity

called also cupric sulfate

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