■ noun
1》 leaven for making bread, consisting of fermenting dough, originally that left over from a previous baking.
↘bread made using such leaven.
2》 N. Amer. historical an experienced prospector in the western US or Canada.
■ noun
1》 leaven for making bread, consisting of fermenting dough, originally that left over from a previous baking.
↘bread made using such leaven.
2》 N. Amer. historical an experienced prospector in the western US or Canada.
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004