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1. A grand and imposing entrance (often extended metaphorically)
   "the portals of the cathedral"; "the portals of heaven"; "the portals of success"
    
2. 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.";
   - portal site
    
3. A short vein that carries blood into the liver
   - portal vein, hepatic portal vein, vena portae

Derived forms: portals

Type of: entrance, entranceway, entrée, entry, entryway, internet site, site, vein, vena, venous blood vessel, web site, website

Part of: portal system

Encyclopedia: Portal, Nebraska