What does thickener mean?
A thickener is a substance added to a liquid, mixture, or other material to increase its viscosity, making it flow less easily. In cooking, starches and other familiar ingredients are used to turn sauces, gravies, soups, and custards into preparations with a richer, more coherent body. In industrial and craft contexts, thickeners help paints, inks, adhesives, and similar products hold their desired consistency. The term is most often countable when referring to a particular additive and can also be used generically for that kind of substance. “Thickener” should not be confused with “thickness,” which names the measurable state or degree of being thick rather than the material responsible for producing it. Although the word can sound technical in everyday speech, it has a straightforward practical meaning: it identifies an ingredient or product whose job is to change texture and flow. Understanding the distinction is useful when reading recipes, product labels, technical specifications, and instructions for mixing or finishing materials.
nounA substance or other agent used to increase the consistency or viscosity of a liquid or mixture, especially in food, paint, ink, adhesives, and similar materials.
- A substance added to a liquid or mixture to increase its viscosity or make it less fluid.
"The chef stirred a cornstarch thickener into the sauce until it reached the desired consistency."
"The chef whisked in a cornstarch thickener until the sauce began to coat the spoon."
"The manufacturer added the recommended thickener to keep the paint from settling."
The plural refers to separate substances or agents used to increase consistency; the singular may also be used generically for this kind of substance.
"The label lists several thickeners that should not be combined."
A thickener changes how a liquid flows, not merely how much liquid there is.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does thickener come from?
English thickener is a derivative of thicken, itself formed from thick with the agentive suffix -er. The base thick is an old English adjective meaning broad or dense, while thicken developed the sense of making or becoming denser. The word is an English formation rather than a direct borrowing from Latin or Greek.
Related word forms
How thickener is actually used
A neutral noun that is especially common in culinary and technical contexts. It may refer to a particular additive or be used more generally for a substance that increases consistency.
Easily confused with thickener
A thickener is the substance or agent that produces a thicker consistency, whereas thickness is the degree or quality of being thick.