A turlough, or turlach, is a unique type of disappearing lake found mostly in limestone areas of Ireland, west of the River Shannon. The name comes from the Irish "tuar", meaning dry, with the suffix "lach", meaning a place (in an abstract sense).
N（名词）
a seasonal lake or pond: a low-lying area on limestone, esp in Ireland, that becomes flooded in wet weather by the upsurge of underlying ground water 随季节变化的湖泊或池塘