Sal ammoniac Meaning, Definition & Usage

  1. noun a white salt used in dry cells
    ammonium chloride.

WordNet

Definitions
  1. L. sal ammoniacus, the salt usually called chloride of ammonium, and formerly muriate of ammonia.
Definitions
  1. (Chem.), ammonium chloride, NH4Cl, a white crystalline volatile substance having a sharp salty taste, obtained from gas works, from nitrogenous matter, etc. It is largely employed as a source of ammonia, as a reagent, and as an expectorant in bronchitis. So called because originally made from the soot from camel's dung at the temple of Jupiter Ammon in Africa. Called also muriate of ammonia.
  2. L. sal ammoniacus, the salt usually called chloride of ammonium, and formerly muriate of ammonia.

Webster 1913