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3 definitions found
 for ammonia
From The Collaborative International Dictionary of English v.0.48 :

  ammonia \am*mo"ni*a\ ([a^]m*m[=o]"n[i^]*[.a]), n. [From sal
     ammoniac, which was first obtaining near the temple of
     Jupiter Ammon, by burning camel's dung. See Ammoniac.]
     (Chem.)
     A gaseous compound of hydrogen and nitrogen, NH3, with a
     pungent smell and taste: -- often called volatile alkali,
     and spirits of hartshorn. It is very soluble in water,
     forming a moderately alkaline solution, and is used in
     aqueous solution as a household cleaning agent, such as for
     cleaning grease from glass.
     [1913 Webster + PJC] Ammoniac

From WordNet (r) 3.0 (2006) :

  ammonia
      n 1: a water solution of ammonia [syn: ammonia water,
           ammonia, ammonium hydroxide]
      2: a pungent gas compounded of nitrogen and hydrogen (NH3)

From Moby Thesaurus II by Grady Ward, 1.0 :

  57 Moby Thesaurus words for "ammonia":
     Dry Ice, Freon, acetylene, argon, asphyxiating gas, butane,
     carbon dioxide, carbon monoxide, castor-bean meal, chlorine,
     coal gas, commercial fertilizer, compost, coolant, dressing, dung,
     enrichener, ethane, ether, ethyl chloride, ethylene, fertilizer,
     fluorine, formaldehyde, freezing mixture, guano, helium, hydrogen,
     ice, ice cubes, illuminating gas, krypton, lewisite, liquid air,
     liquid helium, liquid oxygen, manure, marsh gas, methane, muck,
     mustard gas, natural gas, neon, night soil, nitrate, nitrogen,
     organic fertilizer, oxygen, ozone, phosphate, poison gas, propane,
     radon, refrigerant, sewer gas, superphosphate, xenon
  
  

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