portal /pôr′tl/
noun
- A doorway, entrance, or gate, especially one that is large and imposing.
- An entrance or a means of entrance. “the local library, a portal of knowledge.”
- The portal vein.
- A website considered as an entry point to other websites, often by being or providing access to a search engine.
- A door or gate; an entrance or opening for passage; specifically, the entire architectural treatment of the entrance and its surroundings of a great or splendid building, as a cathedral.
- A square corner of a room separated from the rest by a wainscot, and forming a short passage or vestibule.
- Same as portass.
adjective
- Of or relating to the portal vein or the portal system.
- Of or relating to a point of entrance to an organ, especially the transverse fissure of the liver, through which the blood vessels enter.

