cornstarch

noun

corn·​starch ˈkȯrn-ˌstärch How to pronounce cornstarch (audio)
: starch made from corn and used in foods as a thickening agent, in making corn syrup and sugars, and in the manufacture of adhesives and sizes for paper and textiles

Examples of cornstarch in a Sentence

I used some cornstarch to thicken the gravy.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Shake the spray bottle well to dissolve the cornstarch. Mary Marlowe Leverette, The Spruce, 12 June 2026 Use regular sidewalk chalk or make your own using cornstarch, water, and food coloring. Parents, 11 June 2026 Set aside In a separate bowl, whip the cream with the cornstarch and confectioner’s sugar. Mary Ann Esposito, Boston Herald, 10 June 2026 To make the blueberry compote, combine the blueberries, lemon juice and zest, sugar, cornstarch and salt in a small saucepan. Laura McLively, Mercury News, 8 June 2026 See All Example Sentences for cornstarch

Word History

First Known Use

1853, in the meaning defined above

Time Traveler
The first known use of cornstarch was in 1853

Browse Nearby Words

Cite this Entry

“Cornstarch.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cornstarch. Accessed 17 Jun. 2026.

Kids Definition

cornstarch

noun
corn·​starch -ˌstärch How to pronounce cornstarch (audio)
: a fine starch made from corn and used in foods for thickening, in making corn syrup and sugars, and in making adhesives and sizes for papers and textiles

More from Merriam-Webster on cornstarch

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster