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Also, ammoniacum
[am-uh-nahy-uh-kuh m] /ˌæm əˈnaɪ ə kəm/ (Show IPA). .
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Historical Examples

Sal ammoniac or ammonium nitrate when dissolved in water produce a much more marked cooling effect than does table salt.
Physics Willis Eugene Tower

I do not know,’ he once wrote, ‘what is precisely meant by “ammoniac manure.”
The Earl of Mayo William Wilson Hunter

The whole living room stank of whiskey fumes with an ammoniac tinge.
Someone Comes to Town, Someone Leaves Town Cory Doctorow

Sal ammoniac is used as the exciting fluid, carbon and zinc being used for plates.
Things a Boy Should Know About Electricity Thomas M. (Thomas Matthew) St. John

ammoniac and Mercury Plaster (Emplastrum ammoniaci cum hydrargyro).
Poisons: Their Effects and Detection Alexander Wynter Blyth

ammoniac has likewise a peculiar odour, not less penetrating, or less disagreeable, than these other gasses.
Elements of Chemistry, Antoine Lavoisier

Sal ammoniac, two ounces; rum, one pint; camphor, two drachms.
Burroughs’ Encyclopaedia of Astounding Facts and Useful Information, 1889 Barkham Burroughs

When combined with oxygen, azote forms the nitrous and nitric oxyds and acids; when with hydrogen, ammoniac is produced.
Elements of Chemistry, Antoine Lavoisier

In like manner later physicians, when they wish to prescribe common salt, recommend in particular the ammoniac.
A History of Inventions, Discoveries, and Origins, Volume II (of 2) Johann Beckman

Sal ammoniac exists ready formed in several animal products.
A Dictionary of Arts, Manufactures and Mines Andrew Ure

adjective
a variant of ammoniacal
noun
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

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.