sourdough
- n a leaven of dough in which fermentation is active; used by pioneers for making bread
- n a settler or prospector (especially in western United States or northwest Canada and Alaska)
- I've been making sourdough starter for years, and I'll give them my recipe free.
- To the lucky sourdough or trapper who guessed the day, hour and nearest minute the ice went out would go a record $108,000.
- After the cable car and the Golden Gate Bridge, San Francisco takes a particular civic pride in its unique sourdough bread.