Guano

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Guano \Gua"no\, n.; pl. {Guanos}. [Sp. guano, fr. Peruv. huanu
     dung.]
     A substance found in great abundance on some coasts or
     islands frequented by sea fowls, and composed chiefly of
     their excrement. It is rich in phosphates and ammonia, and is
     used as a powerful fertilizer.


     [1913 Webster]

From WordNet (r) 2.0 [wn]:

  guano
       n : the excrement of sea birds; used as fertilizer