| • | The most common and most useful metallic element, being of
   almost universal occurrence, usually in the form of an oxide (as
   hematite, magnetite, etc.), or a hydrous oxide (as limonite, turgite,
   etc.). It is reduced on an enormous scale in three principal forms;
   viz., cast iron, steel, and wrought iron. Iron usually appears dark
   brown, from oxidation or impurity, but when pure, or on a fresh
   surface, is a gray or white metal. It is easily oxidized (rusted) by
   moisture, and is attacked by many corrosive agents. Symbol Fe (Latin
   Ferrum). Atomic weight 55.9. Specific gravity, pure iron, 7.86; cast
   iron, 7.1. In magnetic properties, it is superior to all other
   substances. | 
											
															| • | An instrument or utensil made of iron; -- chiefly in
   composition; as, a flatiron, a smoothing iron, etc. | 
											
															| • | Fetters; chains; handcuffs; manacles. | 
											
															| • | Strength; power; firmness; inflexibility; as, to rule with a
   rod of iron. | 
											
															| • | Of, or made of iron; consisting of iron; as, an iron bar,
   dust. | 
											
															| • | Resembling iron in color; as, iron blackness. | 
											
															| • | Like iron in hardness, strength, impenetrability, power of
   endurance, insensibility, etc.; | 
											
															| • | Rude; hard; harsh; severe. | 
											
															| • | Firm; robust; enduring; as, an iron constitution. | 
											
															| • | Inflexible; unrelenting; as, an iron will. | 
											
															| • | Not to be broken; holding or binding fast; tenacious. | 
											
															| • | To smooth with an instrument of iron; especially, to
   smooth, as cloth, with a heated flatiron; -- sometimes used with out. | 
											
															| • | To shackle with irons; to fetter or handcuff. | 
											
															| • | To furnish or arm with iron; as, to iron a wagon. |