sourdough
noun
sour·dough
ˈsau̇(-ə)r-ˌdō 
sense 1 is also -ˈdō
1
: a leaven consisting of dough in which fermentation is active
2
[from the use of sourdough for making bread in prospectors' camps]
: a veteran inhabitant and especially an old-time prospector of Alaska or northwestern Canada
Examples of sourdough in a Sentence
Recent Examples on the Web
The sourdough bread was toasted enough to house all of the ingredients without getting soggy, but also without being so rough on the roof of your mouth.
—
Carolyn Burt, Oc Register, 1 May 2026
Other new finds fans can get excited about are a new blueberry sourdough bread in the bakery, sourdough bread bowls, and Caramel Churro Sundae that may require another Costco run in the near future.
—Karen Brewer Grossman, Southern Living, 28 Apr. 2026
The Greenwich The Greenwich, located in the heart of RiNo, serves fresh takes on New York-style Italian cuisine—handmade pastas (in generous portions), sourdough pizzas, and shareable plates.
—Iona Brannon, Travel + Leisure, 28 Apr. 2026
Freezing sourdough is the best long-term option; wrap it tightly and reheat for a fresh-baked experience.
—Bridget Shirvell, Martha Stewart, 26 Apr. 2026
See All Example Sentences for sourdough
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Carolyn Burt, Oc Register, 1 May 2026
Other new finds fans can get excited about are a new blueberry sourdough bread in the bakery, sourdough bread bowls, and Caramel Churro Sundae that may require another Costco run in the near future.
—Karen Brewer Grossman, Southern Living, 28 Apr. 2026
The Greenwich The Greenwich, located in the heart of RiNo, serves fresh takes on New York-style Italian cuisine—handmade pastas (in generous portions), sourdough pizzas, and shareable plates.
—Iona Brannon, Travel + Leisure, 28 Apr. 2026
Freezing sourdough is the best long-term option; wrap it tightly and reheat for a fresh-baked experience.
—Bridget Shirvell, Martha Stewart, 26 Apr. 2026
See All Example Sentences for sourdough
Cite this Entry
“Sourdough.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sourdough. Accessed 3 May. 2026.
Copy CitationKids Definition
sourdough
noun
sour·dough
ˈsau̇(ə)r-ˌdō
1
: a dough in which fermentation is active and which is used to start fermentation in other dough (as in making bread)
2
: an old-time prospector in Alaska or northwestern Canada
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