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por·tal

(pōr'tăl),
1. Relating to any porta or hilum, specifically to the porta hepatis and the portal vein.
2. The point of entry into the body of a pathogenic microorganism.
Synonym(s): port
[L. portalis, pertaining to a porta (gate)]
Alcohol noun A fortified wine—i.e., with alcohol added—from the Douro Valley in northern Portugal which reaches 19–20% by volume (normally wine ranges from 11% to 13.5%. It is typically red and sweet, but also comes in dry, semi-dry and white varieties
Informatics (1) noun Most generally, a place where information goes into or out of a computer, or both (2) Internet noun A number that is part of a URL, appearing after a colon (:) right after the domain name; every service on an Internet server listens on a particular port number on that server. Most services have standard port numbers—e.g., Web servers normally listen on port 80; services can also listen on non-standard ports, in which case the port number must be specified in a URL when accessing the server(3) verb To translate software from one platform—e.g., Windows—to another—e.g., Apple’s OS X
Radiation oncology Field, portal The site on the skin where the radiation enters the body

port

Radiation oncology Field, portal The site on the skin where the radiation enters the body. See Mantle port, Radiation oncology, Subcutaneous port, Venous port.

por·tal

(pōr'tăl)
1. Relating to any porta or hilus, specifically to the porta hepatis and the portal vein.
2. The point of entry into the body of a pathogenic microorganism.
3. Synonym(s): field size. Synonym(s): port.
[L. portalis, pertaining to a porta (gate)]

port,

n in radiology, the opening through which radiographic photons or the useful beam of radiation exits from the head of a dental radiography machine.

port

the upward curve in a bar bit on a horse's bridle.
References in periodicals archive ?
A horrified Henry watched from shore on July 19, 1545, as Mary Rose, fighting the French, heeled to the wind and flooded through open gun ports.
An anti-blast floor and foamfilled petrol tank to protect it from terrorist attacks, numerous gun ports, an air filter system, tear gas canons, a missile detection system.
Nasdaq:CDCY) an industry leader in sophisticated security products, integration and technology for the public security markets, today reported that it was awarded over $2 million in contracts for blast and ballistic resistant windows, doors and gun ports for use at nuclear reactor facilities.
Unlike other high security limousines Jaguar has not equipped the XJ with features from the "dirty tricks" department, such as gun ports or flame-throwers.
The sailors also left the gun ports open so, when the ship turned, water flooded into its hull.
The back to back seating layout allows firing through the 3 gun ports on each side, with two big hatches for patrolling.
Cadillac DeVille has a bomb-proof floor, a foam protected non-exploding petrol tank, gun ports and tear gas cannons.