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ammoniac

[uh-moh-nee-ak] /əˈmoʊ niˌæk/
noun
1.
Also, ammoniacum
[am-uh-nahy-uh-kuh m] /ˌæm əˈnaɪ ə kəm/ (Show IPA)
. gum ammoniac.
adjective
Origin
late Middle English
1375-1425
1375-1425; late Middle English armoniac, ammoniak < Latin ammōniacum < Greek ammōniakón (neuter of ammōniakós of Ammon; see -i-, -ac), applied to a salt and a gum resin prepared near the Shrine of Ammon in Libya
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for ammoniac
  • The hiss was explosive and he turned his face from the acrid ammoniac steam.
British Dictionary definitions for ammoniac

ammoniac1

/əˈməʊnɪˌæk/
adjective
1.
a variant of ammoniacal

ammoniac2

/əˈməʊnɪˌæk/
noun
1.
a strong-smelling gum resin obtained from the stems of the N Asian umbelliferous plant Dorema ammoniacum and formerly used as an expectorant, stimulant, perfume, and in porcelain cement Also called gum ammoniac
Word Origin
C14: from Latin ammōniacum, from Greek ammōniakos belonging to Ammon (apparently the gum resin was extracted from plants found in Libya near the temple of Ammon)
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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ammoniac in Medicine

ammoniac am·mo·ni·ac (ə-mō'nē-āk')
n.
A strong-smelling gum resin from the stems of a plant of western Asia, formerly used in perfumery and in medicine as an expectorant and a stimulant.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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