guano
guano — noun
1. the dried waste matter from seabirds or bats, collected and used as a natural su
the dried waste matter from seabirds or bats, collected and used as a natural substance to help plants grow.
The farmers on the coast collect guano from the rocks to use as natural fertiliser.
Sirin bought a bag of bat guano at the garden centre for her tomato plants.
collocation: bat guano
Large amounts of guano were dug out of the caves in the nineteenth century.
Talia spread seabird guano around the roses, and they bloomed beautifully that summer.
- manure
broader term that includes waste from any farm animal or bird; guano is a specific type of manure from seabirds or bats
- dung
general term for animal waste; guano is a subtype distinguished by its source (seabirds/bats) and its use as fertiliser
- fertiliser
any substance added to soil to help plants grow; guano is a natural, organic fertiliser
用法筆記
Uncountable noun — it has no plural form. Guano refers to the dried, accumulated droppings of seabirds or bats, not fresh waste. It was a major traded commodity in the 19th century.