portal

Noun

• a short vein that carries blood into the liver

• a site that the owner positions as an entrance to other sites on the internet
  • a portal typically has search engines and free email and chat rooms etc.
    

• a grand and imposing entrance (often extended metaphorically)
  • the portals of the cathedral
    
  • the portals of heaven
    
  • the portals of success
    

Related words

• Synonyms: 
  portal vein , hepatic portal vein , vena portae , portal site