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guano

[ gwah-noh ]
/ ˈgwɑ noʊ /
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noun
a natural manure composed chiefly of the excrement of sea birds, found especially on islands near the Peruvian coast.
any similar substance, as an artificial fertilizer made from fish.
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Origin of guano

First recorded in 1595–1605; from Spanish: “fertilizer, dung”; Latin American Spanish huano “dung,” from Quechua wanu “dung for fuel, fertilizer”
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use guano in a sentence

British Dictionary definitions for guano

guano
/ (ˈɡwɑːnəʊ) /

noun plural -nos
  1. the dried excrement of fish-eating sea birds, deposited in rocky coastal regions of South America: contains the urates, oxalates, and phosphates of ammonium and calcium; used as a fertilizer
  2. the accumulated droppings of bats and seals
any similar but artificial substance used as a fertilizer

Word Origin for guano

C17: from Spanish, from Quechuan huano dung
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for guano

guano
[ gwänō ]

A substance composed chiefly of the dung of sea birds or bats, accumulated along certain coastal areas or in caves and used as fertilizer.
Any of various similar substances, such as a fertilizer prepared from ground fish parts.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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