thickener
thick-en-er
noun
A substance added to a liquid to increase its viscosity or make it denser.
"Cornflour is a common thickener for gravies and sauces."
Thesaurus
Synonyms: thickening
thick-en-er
A substance added to a liquid to increase its viscosity or make it denser.
"Cornflour is a common thickener for gravies and sauces."
Synonyms: thickening