guano


Concise Oxford English Dictionary © 2008 Oxford University Press:
guano /ˈgwɑːnəʊ/
noun (pl. guanos) the excrement of seabirds, used as fertilizer.

■ an artificial fertilizer resembling this, especially one made from fish.

– origin C17: from Sp., or from Latin Amer. Sp. huano, from Quechua huanu ‘dung’.
'guano' also found in these Oxford entries:

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