Pronunciation: [ɡwˈɑːnə͡ʊ] (IPA) 
The word "guano" is spelled G-U-A-N-O. The IPA transcription for "guano" is /ˈɡwɑːnəʊ/. The first sound in "guano" is a voiced velar stop /ɡ/, followed by the diphthong /wɑː/. The final syllable consists of a stressed open-mid back rounded vowel /ɔː/ followed by a second syllable ending in an unstressed nasal /n/ and a long unstressed vowel /oʊ/. "Guano" refers to the excrement of seabirds or bats, often used as a fertilizer.
Guano refers to the excrement or droppings of seabirds, bats, or seals, which have accumulated over an extended period of time and have subsequently undergone a natural process of decomposition. This organic material is commonly found in large quantities in coastal areas, islands, or caves where these animals reside.
The properties and characteristics of guano make it highly prized as a natural fertilizer and a valuable resource. Its nutrient-rich composition, including elevated levels of nitrogen, phosphorus, and potassium, promotes plant growth and enhances soil fertility. As a result, guano has historically been utilized in agriculture and gardening practices.
Due to its potent fertilizing properties, guano has played a significant role in global trade and economy. In the 19th century, it was extensively harvested from bird colonies found on remote islands, leading to conflicts and disputes over control of guano-rich territories. The exploitation of guano also gave rise to the formation of prominent guano-based industries, such as the Guano Islands Act in the United States, which encouraged American citizens to claim unclaimed islands for guano extraction.
In addition to its agricultural importance, guano holds ecological relevance as well. It serves as a source of sustenance for various organisms, contributing to nutrient cycles and maintaining biodiversity in coastal ecosystems. The presence of guano can attract scavengers and decomposers, creating a complex food web.
In conclusion, guano is the accumulated fecal matter of seabirds, bats, or seals, known for its nutrient-rich composition and its significance as a natural fertilizer, historical economic resource, and component of coastal ecosystems.
The dung of sea-fowls, found in beds of great thickness on certain islands on the coast of S. Amer., imported and much used as a manure.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
The word "guano" comes from the Quechua language, which is spoken by indigenous people in the Andean region of South America. In Quechua, the word "wanu" means 'dung' or 'manure.' This term was later adopted and anglicized as "guano" in English. Guano specifically refers to the excrement of seabirds and bats, which has been historically used as fertilizer due to its high nutrient content.
