温泉蛋 Traditional form: 溫泉蛋 Pinyin (reading): wēnquándàn Definitions: onsen tamago; hot spring egg (soft-boiled egg cooked slowly in hot spring water) Characters: 温 - warm, lukewarm 泉 - spring, fountain; wealth, money 蛋 - egg Traditional characters: 溫 - warm, lukewarm 泉 - spring, fountain; wealth, money 蛋 - egg