名詞 billabong:

1. a stagnant pool of water in the bed of a stream that flows intermittently
2. a branch of a river made by water flowing from the main stream only when the water level is high

bil.la.bong

n.Australian （名詞）【澳大利亞】
A dead-end channel extending from the main stream of a river.
死水潭，死河：從主河道分流出來的死水溝渠
A streambed filled with water only in the rainy season.
只在雨季有水的河床
A stagnant pool or backwater.
死水：變臭的池塘或積水處

來源：
Wiradhuri (Aboriginal language of southeast Australia) bila [river]
威拉德瑞語（澳大利亞東南部土著語言） bila [河流]
-baô [watercourse filled only after rain]
-baô [只有雨后才注滿的水潭]