noun
- plural of guano; accumulated excrement of seabirds or bats, used as fertilizer
Examples
- The island’s guanos have been harvested for centuries as natural fertilizer.
- Farmers prize guanos for their high nitrogen content.
- The cave contained thick deposits of bat guanos.
- Ships once traveled great distances to collect valuable guanos from remote islands.
- Different types of guanos vary in their nutrient composition.
- The mining of guanos was a major industry in the 19th century.