guano
noun
gua·no
ˈgwä-(ˌ)nō 
: a fertilizer containing the accumulated excrement of seabirds or bats
broadly
: excrement especially of seabirds or bats
Examples of guano in a Sentence
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Now new research published February 11 in PLOS One offers evidence that a Peruvian civilization thriving before the rise of the Inca Empire in the early 1400s was applying guano from those islands to its maize crops by at least 1250.
—
Meghan Bartels, Scientific American, 11 Feb. 2026
In the 19th century, guano miners razed the place, removing most of the topsoil and leaving behind barren rock.
—Susan Casey, Travel + Leisure, 10 Jan. 2026
The Guano Point viewpoint is named for miners who tried to remove nitrogen-rich bat guano from a nearby cave discovered in 1930.
—Don Sweeney, Sacbee.com, 9 Nov. 2025
He was jolted out of his reverie by a whiff of guano in the breeze.
—Ben McGrath, New Yorker, 3 Nov. 2025
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Meghan Bartels, Scientific American, 11 Feb. 2026
In the 19th century, guano miners razed the place, removing most of the topsoil and leaving behind barren rock.
—Susan Casey, Travel + Leisure, 10 Jan. 2026
The Guano Point viewpoint is named for miners who tried to remove nitrogen-rich bat guano from a nearby cave discovered in 1930.
—Don Sweeney, Sacbee.com, 9 Nov. 2025
He was jolted out of his reverie by a whiff of guano in the breeze.
—Ben McGrath, New Yorker, 3 Nov. 2025
See All Example Sentences for guano
Cite this Entry
“Guano.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/guano. Accessed 18 Feb. 2026.
Copy CitationKids Definition
guano
noun
gua·no
ˈgwän-ō
: a substance composed chiefly of the excrement of seabirds or bats and used as a fertilizer
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