guano
🇺🇸
/ˈɡwɑːnəʊ/
🇬🇧
/ˈɡwɑːnəʊ/
Bird droppings, especially from seabirds, used as fertilizer to help plants grow.
The farmers used guano to improve the quality of their soil.
农民使用鸟粪来提高他们的土壤质量。