noun
guano
GWAH-noh
noun
1
The droppings of seabirds or bats, especially when collected and used as a fertilizer.
"Sailors once mined entire islands for their guano deposits."
"The cave floor was thick with bat guano."
verb
1
To spread guano on land as fertilizer.
"Farmers used to guano their fields before chemical fertilizers were common."
How to Use Guano
Learner’s notesIn plain EnglishBird or bat droppings, historically prized as a natural fertilizer.
Common pairings
bat guano
guano deposits
seabird guano
Word Forms
guanoed past tense, guanos plural, guanoes plural, guanos singular
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Sailors once mined entire islands for their _____ deposits.
Etymology
From Spanish guano, from a Quechua word for dung.