sourdough

• 名词，有两个主要含义：一是用作面包发酵的发酵面团（酸面团）；二是指美国西部、加拿大西北部和阿拉斯加等地的老居民或淘金者。

A noun with two distinct meanings: a fermented dough used as a leaven for baking bread, historically used by pioneers; and a term for a settler or prospector, particularly in the western United States, northwest Canada, and Alaska.

1. Fermented dough leavenB1formalculinary

   A mixture of flour and water that has been fermented using naturally occurring yeasts and bacteria, used as a leavening agent for bread.

   酸面团酵头

   • She used her grandmother's sourdough starter to bake a loaf.
   • Sourdough gives bread a tangy flavor and chewy texture.
   • The pioneers relied on sourdough to make bread on the trail.

   同义词chefstarter

2. Veteran settler or prospectorC1informalamerican

   A person who has lived for a long time in a frontier region, especially in the western United States, northwestern Canada, or Alaska, often associated with gold prospecting.

   老淘金者

   • The old sourdough told stories of the Klondike gold rush.
   • Many sourdoughs settled in Alaska during the 19th century.
   • He was a true sourdough, having prospected in the Yukon for decades.

   同义词frontiersmanold handold-timerpioneerveteran