loco vs steam train

loco

• A locomotive. 

• A certain species of Astragalus or Oxytropis, capable of causing locoism. 

• A direction in written or printed music to be returning to the proper pitch after having played an octave higher or lower. 

• Crazy. 

• Intoxicated by eating locoweed. 

• To render insane. 

• To poison with the loco plant; to affect with locoism. 

steam train

• A train pulled by a steam locomotive.