Jan K. Labanowski: Computational Portals for Chemistry  

What is Portal?

Portal

  1. DOOR, ENTRANCE; especially a grand or imposing one
     
  2. the whole architectural composition surrounding and including the doorway and porches of a church
     
  3. the approach or entrance to a bridge or tunnel
     
  4. a communicating part or area of an organism; specifically: the point at which something (as a pathogen) enters the body