n.1.A door or gate; hence, a way of entrance or exit, especially one that is grand and imposing.
From out the fiery portal of the east.
- Shak.
2.(Arch.) The lesser gate, where there are two of different dimensions.
3.(Bridge Building) The space, at one end, between opposite trusses when these are terminated by inclined braces.
4.A prayer book or breviary; a portass.
Portal bracing
(Bridge Building) a combination of struts and ties which lie in the plane of the inclined braces at a portal, serving to transfer wind pressure from the upper parts of the trusses to an abutment or pier of the bridge.
a.1.(Anat.) Of or pertaining to a porta, especially the porta of the liver; as, the portal vein, which enters the liver at the porta, and divides into capillaries after the manner of an artery.
Noun1.Portalportal - a grand and imposing entrance (often extended metaphorically); "the portals of the cathedral"; "the portals of heaven"; "the portals of success"
2.portal - 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."
Synonyms: portal site
3.portal - a short vein that carries blood into the liver
1.PORTAL - Process-Oriented Real-Time Algorithmic Language.

["PORTAL - A Pascal-based Real-Time Programming Language", R. Schild in Algorithmic Languages, J.W. deBakker et al eds, N-H 1981].
2.(World-Wide Web)portal - A web site that aims to be an entry point to the World-Wide Web, typically offering a search engine and/or links to useful pages, and possibly news or other services. These services are usually provided for free in the hope that users will make the site their default home page or at least visit it often. Popular examples are Yahoo and MSN. Most portals on the Internet exist to generate advertising income for their owners, others may be focused on a specific group of users and may be part of an intranet or extranet. Some may just concentrate on one particular subject, say technology or medicine, and are known as a vertical portals.
French door, archway, back door, barway, bulkhead, carriage entrance, cellar door, cellarway, door, doorjamb, doorpost, entrance, entrance hall, entranceway, entryway, foyer, front door, galilee, gate, gatepost, gateway, hatch, hatchway, lintel, lobby, narthex, porch, porte cochere, portico, postern, propylaeum, pylon, scuttle, side door, stile, stoa, storm door, threshold, tollgate, trap, trap door, turnpike, turnstile, vestibule
Translate Portal to Spanish, Translate Portal to German, Translate Portal to French
Portable Forth Environment
Portable Network Graphics
Portable Operating System Interface
Portable Pixmap
portable saw
Portable Scheme Debugger
Portable Scheme Interpreter
Portable Standard Lisp
Portable steam engine
Portable Tool Interface
portacaval shunt
Portage group
-- Portal --
Portal bracing
portal hypertension
portal site
portal system
portal vein
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