The Collaborative International Dictionary
Soda bread \So"da bread\, n. a bread made with buttermilk and leavened with baking soda.
Wiktionary
n. bread made using sour milk and baking soda as a rising agent, rather than yeast; common in Ireland.
Wikipedia
Soda bread (, , ) is a variety of quick bread traditionally made in a variety of cuisines in which sodium bicarbonate (otherwise known as "baking soda") is used as a leavening agent instead of the traditional yeast. The ingredients of traditional soda bread are flour, bread soda, salt, and buttermilk. The buttermilk in the dough contains lactic acid, which reacts with the baking soda to form tiny bubbles of carbon dioxide. Other ingredients can be added such as butter, egg, raisins, or nuts. An advantage of quick breads is their ability to be prepared quickly and reliably, without requiring the time-consuming skilled labor and temperature control needed for traditional yeast breads.
Usage examples of "soda bread".
He put several chunks of soda bread around the outside and packed fresh eggs in the nest thus formed.
The rain was still pelting down when Kris and Zainal stopped in the main cavern for the hot soup and the rather tasty form of soda bread that was available.
While his father had taught him to make soda bread, Irish stew, haggerty and Irish coffee.