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

For a full palette of watercolors, combine 1 cup of baking soda with 3/4 cup white vinegar, 2 tablespoons corn syrup, and 1 cup cornstarch. —Brandee Gruener, Southern Living, 19 Apr. 2025

Use bio-packaging and sustainable packaging that is biodegradable, 100% recyclable or made of post-consumer recyclable materials like cornstarch. —Expert Panel®, Forbes.com, 17 Apr. 2025

In a small bowl combine cornstarch and water until smooth, Stir into juices in the Dutch oven. —Sarah Martens, Better Homes & Gardens, 13 Apr. 2025

Substitutions: Potato starch can be replaced with cornstarch or tapioca starch. —The Washington Post, San Diego Union-Tribune, 19 Feb. 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