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
On the show, the singer announced her new album The Life of a Showgirl and opened up about her love of sourdough.
—
Hannah Dailey, Billboard, 7 Oct. 2025
From sourdough starter kits to air fryers, Amazon Prime Big Deal Days bring major discounts to kitchen essentials.
—Nora Colomer
May Earn A Commission If You Buy Through Our Referral Links. This Content Was Created By A Team That Works Independently From The Fox Newsroom., FOXNews.com, 7 Oct. 2025
From spelt wheat sourdough and baguettes to sea salt dinner buns and country sourdough, there is no shortage of good options.
—Melinda Salchert, Southern Living, 5 Oct. 2025
Notably, one bacterium was similar to a strain used in commercial sourdough.
—Mrigakshi Dixit, Interesting Engineering, 3 Oct. 2025
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Hannah Dailey, Billboard, 7 Oct. 2025
From sourdough starter kits to air fryers, Amazon Prime Big Deal Days bring major discounts to kitchen essentials.
—Nora Colomer
May Earn A Commission If You Buy Through Our Referral Links. This Content Was Created By A Team That Works Independently From The Fox Newsroom., FOXNews.com, 7 Oct. 2025
From spelt wheat sourdough and baguettes to sea salt dinner buns and country sourdough, there is no shortage of good options.
—Melinda Salchert, Southern Living, 5 Oct. 2025
Notably, one bacterium was similar to a strain used in commercial sourdough.
—Mrigakshi Dixit, Interesting Engineering, 3 Oct. 2025
See All Example Sentences for sourdough
Cite this Entry
“Sourdough.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sourdough. Accessed 9 Oct. 2025.
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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