from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A substance composed chiefly of the dung of sea birds or bats, accumulated along certain coastal areas or in caves and used as fertilizer.
- n. Any of various similar substances, such as a fertilizer prepared from ground fish parts.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Dung from a sea bird or from a bat.
from the GNU version of the Collaborative International Dictionary of English
- n. 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.
from The Century Dictionary and Cyclopedia
- n. A fertilizing excrement found on many small islands in the Southern Ocean and on the western coast of Africa, but chiefly on islands lying near the Peruvian coast.
- n. A fertilizer made from fishes. See fish-manure.
- To manure with guano.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the excrement of sea birds; used as fertilizer
Spanish, from Quechua huanu, dung.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Spanish guano, from Quechuan huanu ("dung"). (Wiktionary)