title: HCN
text: # HCN
  
  HCN may refer to:
  
  ## Science and mathematics
  
  * HCN channel, a cellular ion channel
  * Highly composite number, a type of integer
  * Hydrogen cyanide
  
  ## Transportation
  
  * Halcyonair, a Cape Verdean airline
  * Headcorn railway station, in England
  * Hengchun Airport, in Taiwan
  
  ## Other
  
  * Health Communication Network, an Australian software company
  * High Country News, an American newspaper
  