Hypertext Webster Gateway: "ammoniac"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Ammoniac \Am*mo"ni*ac\, Ammoniacal \Am`mo*ni"a*cal\, a.
Of or pertaining to ammonia, or possessing its properties;
as, an ammoniac salt; ammoniacal gas.
{Ammoniacal engine}, an engine in which the vapor of ammonia
is used as the motive force.
{Sal ammoniac} [L. sal ammoniacus], the salt usually called
{chloride of ammonium}, and formerly {muriate of ammonia}.
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Ammoniac \Am*mo"ni*ac\(or Gum ammoniac \Gum` am*mo"ni*ac\, n.
[L. Ammoniacum, Gr. ? a resinous gum, said to distill from a
tree near the temple of Jupiter Ammon; cf. F. ammoniac. See
{Ammonite}.] (Med.)
The concrete juice (gum resin) of an umbelliferous plant, the
{Dorema ammoniacum}. It is brought chiefly from Persia in the
form of yellowish tears, which occur singly, or are
aggregated into masses. It has a peculiar smell, and a
nauseous, sweet taste, followed by a bitter one. It is
inflammable, partially soluble in water and in spirit of
wine, and is used in medicine as an expectorant and
resolvent, and for the formation of certain plasters.
From WordNet (r) 1.7 (wn)
ammoniac
adj : pertaining to or containing or similar to ammonia [syn: {ammoniacal}]
n : the aromatic gum of the ammoniac plant [syn: {gum ammoniac}]
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