baking powder

noun

1. any of various powders used as a substitute for yeast in baking, composed of sodium bicarbonate mixed with an acid substance, as cream of tartar, capable of setting carbon dioxide free when the mixture is moistened, causing the dough to rise.

baking powder

noun

1. any of various powdered mixtures that contain sodium bicarbonate, starch (usually flour), and one or more slightly acidic compounds, such as cream of tartar: used in baking as a substitute for yeast

baking powder

1. A mixture of baking soda, a nonreactive filler (such as starch), and at least one slightly acidic compound (such as cream of tartar). Baking powder works as a leavening agent in baking by releasing carbon dioxide when mixed with a liquid, such as milk or water.

Word History and Origins

Origin of baking powder¹

First recorded in 1840–50

Example Sentences

Once cooled, the paste is incorporated with flour, baking powder and salt to make a dough.

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If the tech industry were a bakery, dysprosium would be like baking powder: It is used in small quantities but essential for enabling electric-car motors, wind turbines, military systems and computer-chip machinery.

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Chemical leaveners, like baking powder and baking soda, however, can actually help the process there.

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The streusel — made from a flour mixture of oats, all-purpose flour, whole-wheat flour, brown sugar, baking powder, cinnamon and sea salt — is sprinkled on top before baking.

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The chocolate digestive was launched about a quarter of a century after the plain variety, whose name was inspired by the belief that the baking powder in the recipe would help with digestion.

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