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portal

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The definition of a portal is a gateway or entry to something else.

(noun)

An example of a portal is a door into a room.
An example of a portal is a website that takes you to many other websites.

See portal in Webster's New World College Dictionary

noun

a doorway, gate, or entrance, esp. a large and imposing one
any point or place of entry, as one where nerves, vessels, etc. enter an organ
a website designed to provide access to numerous other sites and, variously, e-mail service, online shopping, etc.

Origin: ME < MFr < ML portale, orig. neut. of portalis, of a door < L porta: see port

adjective

designating, of, or like the vein carrying blood from the intestines, stomach, etc. to the liver

Origin: ML portalis

See portal in American Heritage Dictionary 4

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.

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.

Origin:

Origin: Middle English

Origin: , from Old French

Origin: , from Medieval Latin portāle, city gate

Origin: , from neuter of portālis, of a gate

Origin: , from Latin porta, gate; see per-² in Indo-European roots

Origin: . N., sense 3 and adj., from New Latin porta (hepatis), transverse fissure (of the liver), literally gate of the liver

Origin: , perhaps ultimately translation of Akkadian bāb (ekalli), gate (of the palace), umbilical fissure of the liver (next to the transverse fissure)

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