1. [syn: ammoniac, gum ammoniac]
The Collaborative International Dictionary of English v.0.48:
Ammoniac \Am*mo"ni*ac\(or Gum ammoniac \Gum` am*mo"ni*ac\, n.
[L. Ammoniacum, Gr. 'ammoniako`n 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 Iran 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 alcohol, and
is used in medicine as an expectorant and resolvent, and for
the formation of certain plasters.
[1913 Webster + AS]
WordNet (r) 3.0 (2006):
n 1: the aromatic gum of the ammoniac plant [syn: ammoniac,