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n. pl. gua·nos
A substance composed chiefly of the dung of seabirds or bats, accumulated along certain coastal areas or in caves and used as fertilizer.
[Spanish, from Quechua huanu, dung.]
n, pl -nos
(Zoology) 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
1. (Zoology) any similar but artificial substance used as a fertilizer
[C17: from Spanish, from Quechuan huano dung]
1. a natural manure composed chiefly of the excrement of sea birds, found esp. on islands near the Peruvian coast.
2. any similar substance, as an artificial fertilizer made from fish.
[1595–1605; < Sp]
A substance composed chiefly of the partly decomposed dung of sea birds or bats. It is used as a fertilizer.
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|Noun||1.||guano - the excrement of sea birds; used as fertilizer|
body waste, excrement, excreta, excretory product, excretion - waste matter (as urine or sweat but especially feces) discharged from the body