cornstarch: meaning, definition, pronunciation and examples
C1Neutral to Technical
Quick answer
What does “cornstarch” mean?
A fine, powdery starch derived from the endosperm of corn (maize) kernels, used primarily as a thickening agent in cooking.
Audio
Pronunciation
Definition
Meaning and Definition
A fine, powdery starch derived from the endosperm of corn (maize) kernels, used primarily as a thickening agent in cooking.
A versatile cooking ingredient used for thickening sauces, soups, and puddings; also used in baking and as a coating for frying. In industrial contexts, it can be used in adhesives, textiles, and paper manufacturing.
Dialectal Variation
British vs American Usage
Differences
In British English, the equivalent term is 'cornflour' (note: British 'cornflour' is the same as American 'cornstarch'; British 'corn flour' (two words) can sometimes refer to a finer whole-grain flour). American English exclusively uses 'cornstarch'.
Connotations
In the UK, 'cornflour' is a standard pantry item. In the US, 'cornstarch' is equally standard. No significant connotative difference beyond regional terminology.
Frequency
High frequency in culinary contexts in both regions, but the lexical item differs.
Grammar
How to Use “cornstarch” in a Sentence
[Verb] + cornstarch (e.g., add, mix, use)cornstarch + [Verb] (e.g., thickens, dissolves, lumps)[Adjective] + cornstarch (e.g., pure, organic, dissolved)Vocabulary
Collocations
Examples
Examples of “cornstarch” in a Sentence
verb
British English
- The recipe says to cornflour the chicken before frying. (Note: rare, 'dust with cornflour' is standard)
- You need to cornstarch the mixture to get the right consistency. (Note: rare/neologism)
American English
- You should cornstarch the berries for the pie filling to prevent a soggy bottom. (Note: rare, 'toss in cornstarch' is standard)
adjective
British English
- A cornflour slurry is essential. (i.e., a slurry made of cornflour)
- The cornflour-thickened custard was smooth.
American English
- A cornstarch slurry is essential.
- The cornstarch-thickened gravy was lump-free.
Usage
Meaning in Context
Business
Used in the food manufacturing and wholesale industry (e.g., 'We source non-GMO cornstarch for our product line').
Academic
Appears in chemistry or food science texts discussing carbohydrate polymers and gelatinization.
Everyday
Common in home cooking recipes and instructions (e.g., 'Thicken the gravy with a bit of cornstarch').
Technical
Specified in industrial formulations for adhesives, bioplastics, or as an anti-caking agent.
Watch out
Common Mistakes When Using “cornstarch”
- Using it without making a slurry first, leading to lumps.
- Overheating for prolonged periods, causing thinning after initial thickening (especially in acidic sauces).
- Confusing it with baking powder or flour in recipes.
FAQ
Frequently Asked Questions
No, they are completely different. Cornstarch is a pure starch used for thickening. Baking powder is a leavening agent containing an acid and a base, used to make baked goods rise.
Yes, but you will need about twice as much flour by volume, and the result will be more opaque and less glossy than with cornstarch. Flour also requires longer cooking to remove the raw taste.
Creating a 'slurry' with cold water disperses the starch granules and prevents them from clumping together when added to a hot liquid, ensuring a smooth texture.
Yes, pure cornstarch is naturally gluten-free, making it a popular thickening agent in gluten-free cooking. Always check the packaging for potential cross-contamination warnings if you have celiac disease.
A fine, powdery starch derived from the endosperm of corn (maize) kernels, used primarily as a thickening agent in cooking.
Cornstarch is usually neutral to technical in register.
Cornstarch: in British English it is pronounced /ˈkɔːn.stɑːtʃ/, and in American English it is pronounced /ˈkɔːrn.stɑːrtʃ/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “None specific to this noun.”
Learning
Memory Aids
Mnemonic
Think: CORN (the source) + STARCH (what it is). It's the STARCH from CORN, used to thicken like a STARCHy glue.
Conceptual Metaphor
THICKENING IS REINFORCING / PROVIDING STRUCTURE (e.g., 'The cornstarch gives body to the sauce').
Practice
Quiz
What is the primary culinary function of cornstarch?