guano
/ˈgwɑːnəʊ/noun
(pl. -os)［mass noun］
1- the excrement of seabirds, occurring in thick deposits notably on the islands off Peru and Chile, and used as fertilizer鸟粪（自然堆积的海鸟粪, 尤见于秘鲁和智利沿岸岛屿, 被用作肥料）。
1.1
- an artificial fertilizer resembling natural guano, especially one made from fish.类似鸟粪的人造肥料（尤指鱼肥）。
词源
early 17th cent.: from Spanish， or from Latin American Spanish huano, from Quechua huanu 'dung'.