cornstarch

noun

corn·​starch ˈkȯrn-ˌstärch 

: 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

Whisk together melted butter, water, cornstarch, and cinnamon in a small bowl until smooth; brush evenly over apples. —Alana Al-Hatlani, Southern Living, 22 Oct. 2025

Meanwhile, mix 1/2 cup sugar, remaining 1/4 teaspoon cinnamon, remaining 1/4 teaspoon salt, and cornstarch in large microwave-safe bowl; add apples and toss to combine. —Cathy Thomas, Oc Register, 13 Oct. 2025

Don’t skip the cornstarch and baking soda in the marinade. —Robin Miller, AZCentral.com, 9 Oct. 2025

Add the cornstarch mixture and stir until the sauce thickens for about 2 minutes. —Linda Gassenheimer, Boston Herald, 8 Oct. 2025

Word History

First Known Use

1853, in the meaning defined above

Rhymes for cornstarch

• arch
• march
• starch

Kids Definition

cornstarch

noun

corn·​starch -ˌstärch 

: 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