- n the aromatic gum of the ammoniac plant
- a pertaining to or containing or similar to ammonia
- Two University of Brussels chemists have since produced sal-ammoniac gas in their laboratory, using the computer data for guidance.
- Stars prick the eyes with sharp ammoniac proverbs, New verities, new inklings in the velvet hummed .
- Siegel and his associates incubated the soil in a hostile ammoniac atmosphere, and fed it with a nutrient broth.