Sourdough

Definitions

1. A type of bread dough leavened with yeast and lactobacilli that produce acids giving a sour taste.
   countable, uncountable
2. An old-timer, especially in Alaska.
   countable, slang
3. A permanent resident of the territory. Someone who has lived in the Yukon during all four seasons.
   Yukon, countable
4. A 49er, a California Gold Rush miner.
   countable, historical
5. Leaven; an agent that makes dough rise.
   countable, obsolete, uncountable

Equivalents

Examples

“The troops went for those fresh tomatoes like⟳ sourdoughs going for gold in the Klondike.”

CEFR level