guano

noun

gua·​no ˈgwä-(ˌ)nō How to pronounce guano (audio)
: a fertilizer containing the accumulated excrement of seabirds or bats
broadly : excrement especially of seabirds or bats

Examples of guano in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Starting in the 1800s, however, American and British miners began flocking to Sombrero Island to take advantage of its abundant seabird guano, which can be used as fertilizer. Sarah Kuta, Smithsonian Magazine, 19 Dec. 2024 The researchers note that the deaths of these men mark a concerning trend in bat guano being used as cannabis fertilizer. Tim Ryan, Newsweek, 17 Dec. 2024 Marijuana grown with bat guano often has reportedly more complex aromas and flavors than those grown with synthetic fertilizers. Dario Sabaghi, Forbes, 17 Dec. 2024 According to Live Science, the Rochester residents died from pneumonia after the bat poop — also known as guano —released a harmful fungus called Histoplasma capsulatum. Gabrielle Rockson, People.com, 17 Dec. 2024 See all Example Sentences for guano 

Word History

Etymology

Spanish, from Quechua wanu fertilizer, dung

First Known Use

1604, in the meaning defined above

Time Traveler
The first known use of guano was in 1604

Dictionary Entries Near guano

Cite this Entry

“Guano.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/guano. Accessed 3 Jan. 2025.

Kids Definition

guano

noun
gua·​no ˈgwän-ō How to pronounce guano (audio)
: a substance composed chiefly of the excrement of seabirds or bats and used as a fertilizer

More from Merriam-Webster on guano

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