gum ammoniac : Idioms & Phrases


Ammoniacal engine

  • an engine in which the vapor of ammonia is used as the motive force.
Webster 1913

Sal ammoniac

  • noun a white salt used in dry cells
    ammonium chloride.
WordNet
  • L. sal ammoniacus, the salt usually called chloride of ammonium, and formerly muriate of ammonia.
Webster 1913