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

/ bā′kĭng /

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

It’s easy to assume that a person with a gentrification fence is less likely to engage with community events, learn the names of your kids or let you borrow a cup of salt or a pinch of baking powder.

From Los Angeles Times

To that, add a pinch of salt, 1 tsp baking powder, 4 rounded Tbsp sugar, and a hefty shake of cinnamon.

From Salon

These appeared on every quick bread and muffin I baked, whether they used baking soda, baking powder or both.

From Seattle Times

In a small bowl, whisk to combine flour, baking powder, salt and cocoa powder and set aside.

From Salon

In a medium bowl, whisk together flour, baking powder and salt.

From Seattle Times