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am·mo·ni·ac 1

 (ə-mō′nē-ăk′) also am·mo·ni·a·cal (ăm′ə-nī′ə-kəl)
Of, containing, or similar to ammonia.

am·mo·ni·ac 2

A strong-smelling gum resin from the stems of a plant (Dorema ammoniacum) of western Asia, formerly used in perfumery and in medicine as an expectorant and a stimulant. Also called gum ammoniac.

[Middle English ammoniak, from Latin ammōniacum, from Ammōniacus, of Amen, from Greek Ammōniakos; see ammonia.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Chemistry) of, containing, using, or resembling ammonia. Also: ammoniac
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˌæm əˈnaɪ ə kəl)

also ammoniac

1. consisting of, containing, or using ammonia.
2. like ammonia.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.ammoniacal - pertaining to or containing or similar to ammoniaammoniacal - pertaining to or containing or similar to ammonia
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Meatal strictures may be due to ammoniacal dermatitis in the very young, lichen sclerosus (LS) in the adolescent and young adults and instrumentation or poor hygiene at any age.
Samples were analyzed for total suspended solids (TSS), biochemical oxygen demand (BOD5) and ammoniacal nitrogen (NH3-N).
The average pH, total ammoniacal nitrogen (TAN = N[H.sub.3]+N[H.sub.4.sup.+]), DM and VS content of the mesophilic inoculum obtained was 8.01, 3.29g/kg, 3.98% (of total mass) and 63.9% (of DM), respectively.
The results of the analyses involving total nitrogen, total phosphorus, total ammoniacal nitrogen, orthophosphate, pH, dissolved oxygen, % of [O.sub.2] saturation, water temperature and chlorophyll a were submitted to multi-variation analyses considering the Principal Components Analysis (GOODALL, 1954 apud VALENTIN, 2000).
Approximately 0.5 L of each water sample was filtered in a Whatman GF/C glass fibre filter (porosity 0.45 mm, diameter 47 mm), for determination of the concentrations of suspended particulate matter (SPM) (APHA, 1998), chlorophyll-a (Nush, 1980), ammoniacal nitrogen (N-ammoniacal) (Koroleff, 1976), dissolved Kjeldahl nitrogen (DKN), N-nitrate (N-N[O.sub.3]), N-nitrite (N-N[O.sub.2]) (Mackereth et al., 1978), dissolved phosphorus (DP), and P-orthophosphate (P-P[O.sub.4]) (Golterman et al., 1978).
Ammonia volatilisation is controlled by wind speed, temperature, and ammoniacal N concentration and pH in the surface soil (Sherlock et al.
This synthesis occurred in ammoniacal medium under vigorous stirring and at high pH.
Ammoniacal ([MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII]), nitrate ([MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII]), and nitrite ([MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII]) nitrogen concentrations in the surface-applied effluent and drainage leachate were monitored regularly.
These include hydrometallurgy in sulphate, chloride and ammoniacal media.
for her dedicated work on the measurement of ammoniacal nitrogen and soluble calcium and magnesium as well as her contributions to the technical committees of the American Foundrymen's Society, Inc.
For both wastes, a sample of approximately 1 L was collected in each box for characterization (dry matter and contents of total N and ammoniacal N), according to the methodology proposed by Tedesco et al.