Definitions
1.NounA type of bread dough leavened with yeast and lactobacilli that produce acids giving a sour taste. .mw-parser-output .defdate{font-size:smaller}
2.NounAn old-timer, especially in Alaska.
3.NounA permanent resident of the territory. Someone who has lived in the Yukon during all four seasons.
4.NounA 49er, a California Gold Rush miner.
5.NounLeaven; an agent that makes dough rise.