chloride of ammonium
Webster's Dictionary (GCIDE)
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
Chloride \Chlo"ride\, n. (Chem.) A binary compound of chlorine with another element or radical; as, chloride of sodium (common salt). [1913 Webster]
Chloride of ammonium, sal ammoniac.
Chloride of lime, bleaching powder; a grayish white substance, CaOCl2, used in bleaching and disinfecting; -- called more properly calcium hypochlorite. See Hypochlorous acid, under Hypochlorous.
Mercuric chloride, corrosive sublimate. [1913 Webster]