#halide  a salt of any halogen acid
  supertype:  #salt  a compound formed by replacing hydrogen in an acid by a metal (or a radical that acts like a metal)
  subtype:  #bromide  any of the salts of hydrobromic acid; used as a sedative
     subtype:  #hydrogen_bromide  a colorless gas that yields hydrobromic acid in solution with water
     subtype:  #methyl_bromide  a poisonous gas or liquid (CH3Br) used to fumigate rodents, worms, etc.
     subtype:  #silver_bromide  a bromide that darkens when exposed to light; used in making photographic emulsions
  subtype:  #fluoride  a salt of hydrofluoric acid
     subtype:  #boron_trifluoride__borontrifluoride  a pungent colorless gas
     subtype:  #hydrogen_fluoride  a colorless poisonous corrosive liquid made by the action of sulphuric acid on calcium fluoride; solutions in water are hydrofluoric acid
     subtype:  #stannous_fluoride  a white powder that is used to fluoridate toothpaste
  subtype:  #iodide  a salt or ester of hydriodic acid
     subtype:  #potassium_iodide__potassiumiodide  a crystalline salt in organic synthesis and in making photographic emulsions and in iodized table salt
     subtype:  #hydrogen_iodide__hydrogeniodide  a colorless gas that yields hydroiodic acid in aqueous solution
     subtype:  #silver_iodide  an iodide that is used in photography, in seeding clouds to make rain, and in medicine
     subtype:  #sodium_iodide  a crystalline salt used like potassium iodide
  subtype:  #chloride.halide  any salt of hydrochloric acid (containing the chloride ion)
     subtype:  #potassium_chloride__potassiumchloride__Kaochlor__K-lor__Klorvess__K-lyte  salt of potassium (trade names Kaochlor and K-lor and Klorvess and K-lyte); used to treat potassium deficiency
  subtype:  #tetrahalide  any halide containing four halogen atoms in it molecules

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