Wiktionary
n. (context inorganic compound English) The ionic base, NH4+OH-, obtained by dissolving ammonia in water.
WordNet
n. a water solution of ammonia [syn: ammonia water, ammonia]
Wikipedia
Ammonia solution, also known as ammonium hydroxide, ammonia water, ammonical liquor, ammonia liquor, aqua ammonia, aqueous ammonia, or simply ammonia, is a solution of ammonia in water. It can be denoted by the symbols NH(aq). Although the name ammonium hydroxide suggests an alkali with composition [NH][OH], it is actually impossible to isolate samples of NHOH, as these ions do not comprise a significant fraction of the total amount of ammonia except in extremely dilute solutions.
Usage examples of "ammonium hydroxide".
An all-consuming blaze -- multiple thermite charges, phosphor arranged to spill from its water cover, exploding bottles of ether-ammonium hydroxide.
Morcom, whose job description as properties manager has grown to include whales, is bathing the Nantucket bones in ammonium hydroxide and hydrogen peroxide, a mixture that extracts oil.
I think I had inhaled too much ammonium hydroxide from the hair dye, or something.