• synonyms


  1. a starch or a starchy flour made from corn and used for thickening gravies and sauces, making puddings, etc.
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Origin of cornstarch

An Americanism dating back to 1850–55; corn1 + starch
Also called, especially British, corn flour.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for cornstarch


  1. US and Canadian a fine starchy maize flour, used esp for thickening saucesAlso called (in Britain and certain other countries): cornflour
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012