ETYM From sal ammoniac, which was first obtaining near the temple of Jupiter Ammon, by burning camel's dung. Related to Ammoniac.
NH3 colorless pungent-smelling gas, lighter than air and very soluble in water. It is made on an industrial scale by the Haber process, and used mainly to produce nitrogenous fertilizers, some explosives, and nitric acid.
In aquatic organisms and some insects, nitrogenous waste (from breakdown of amino acids and so on) is excreted in the form of ammonia, rather than urea as in mammals.
A pungent gas compounded of nitrogen and hydrogen.

ETYM Latin Ammoniacum, Greek, a resinous gum, said to distill from a tree near the temple of Jupiter Ammon; cf. French ammoniac. Related to Ammonite.
The aromatic gum of the ammoniac plant; SYN. gum ammoniac.

Or sal volatile; A mixture of ammonium carbonate, bicarbonate, and carbamate together with other strong-smelling substances, formerly used as a restorative for dizziness or fainting.
A pungent preparation of ammonium carbonate and perfume; sniffed as a stimulant to relieve faintness.

Pertaining to or containing or similar to ammonia; SYN. ammoniacal.

Of, relating to, containing, or resembling ammonia.