ammoniac

ammoniac
    adj 1: pertaining to or containing or similar to ammonia [syn:
           {ammoniac}, {ammoniacal}]
    n 1: the aromatic gum of the ammoniac plant [syn: {ammoniac},
         {gum ammoniac}]
    

ammoniac \am*mo"ni*ac\ ([a^]m*m[=o]"n[i^]*[a^]k), Ammoniacal
\Am`mo*ni"a*cal\ ([a^]m`m[-o]*n[imac]"[.a]*kal), a.
   Of, pertaining, or containing ammonia, or possessing its
   properties; as, an ammoniac salt; ammoniacal gas.
   [1913 Webster]

   {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}.
      [1913 Webster] Gum ammoniac
    

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]