ammonia
ammonia (am*mō"ni*ȧ) , noun
[From sal ammoniac, which was first obtaining near the temple of Jupiter Ammon, by burning camel's dung. See Ammoniac.]
(Chemistry) A gaseous compound of hydrogen and nitrogen, NH3, with a pungent smell and taste: -- often called volatile alkali, and spirits of hartshorn. It is very soluble in water, forming a moderately alkaline solution, and is used in aqueous solution as a household cleaning agent, such as for cleaning grease from glass.