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ammonia

[uh-mohn-yuh, uh-moh-nee-uh] /əˈmoʊn yə, əˈmoʊ ni ə/
noun, Chemistry
1.
a colorless, pungent, suffocating, highly water-soluble, gaseous compound, NH 3 , usually produced by the direct combination of nitrogen and hydrogen gases: used chiefly for refrigeration and in the manufacture of commercial chemicals and laboratory reagents.
2.
Also called ammonia solution, ammonia water, aqua ammoniae, aqua ammonia, aqueous ammonia. this gas dissolved in water; ammonium hydroxide.
Origin
1790-1800
1790-1800; < New Latin, so called as being obtained from sal ammoniac. See ammoniac

aqua ammoniae

[uh-moh-nee-ee] /əˈmoʊ niˌi/
noun
1.
ammonia (def 2).
Also, aqua ammonia.
Origin
< New Latin: literally, water of ammonia
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for aqua ammonia

ammonia

/əˈməʊnɪə; -njə/
noun
1.
a colourless pungent highly soluble gas mainly used in the manufacture of fertilizers, nitric acid, and other nitrogenous compounds, and as a refrigerant and solvent. Formula: NH3
2.
a solution of ammonia in water, containing the compound ammonium hydroxide
Word Origin
C18: from New Latin, from Latin (sal) ammōniacus (sal) ammoniac1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for aqua ammonia

ammonia

n.

1799, Modern Latin, coined 1782 by Swedish chemist Torbern Bergman (1735-1784) for gas obtained from sal ammoniac, salt deposits containing ammonium chloride found near temple of Jupiter Ammon (from Egyptian God Amun) in Libya, from Greek ammoniakos "belonging to Ammon." The shrine was ancient already in Augustus' day, and the salts were prepared "from the sands where the camels waited while their masters prayed for good omens" [Shipley].

There also was a gum form of sal ammoniac, from a wild plant that grew near the shrine, and across North Africa and Asia. A less likely theory traces the name to Greek Armeniakon "Armenian," because the substance also was found in Armenia. Also known as spirit of hartshorn and volatile or animal alkali.

Online Etymology Dictionary, © 2010 Douglas Harper
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aqua ammonia in Medicine

ammonia am·mo·nia (ə-mōn'yə)
n.
A colorless, pungent gas used to manufacture a wide variety of nitrogen-containing organic and inorganic chemicals.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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aqua ammonia in Science
ammonia
  (ə-mōn'yə)   
A colorless alkaline gas that is lighter than air and has a strongly pungent odor. It is used as a fertilizer and refrigerant, in medicine, and in making dyes, textiles, plastics, and explosives. Chemical formula: NH3.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Article for aqua ammonia

ammonium hydroxide

solution of ammonia gas in water, a common commercial form of ammonia. It is a colourless liquid with a strong characteristic odour. In concentrated form, ammonium hydroxide can cause burns on contact with the skin; ordinary household ammonia, used as a cleanser, is dilute ammonium hydroxide.

Learn more about ammonium hydroxide with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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