a gallery or passage connecting parts of a building; hallway.
2.
a passage into which several rooms or apartments open.
3.
a passageway in a passenger ship or railroad car permitting access to separate cabins or compartments.
4.
a narrow tract of land forming a passageway, as one connecting two major cities or one belonging to an inland country and affording an outlet to the sea: the Polish Corridor.
5.
a usually densely populated region characterized by one or more well-traveled routes used by railroad, airline, or other carriers: The Northeast corridor extends from Washington, D.C., to Boston.
Aeronautics. a restricted path along which an aircraft must travel to avoid hostile action, other air traffic, etc.
7.
Aerospace. a carefully calculated path through the atmosphere along which a space vehicle must travel after launch or during reentry in order to attain a desired orbit, to avoid severe acceleration and deceleration, or to minimize aerodynamic heating.
Origin: 1585–95; < Middle French < Upper Italian corridore (Tuscan corridoio), equivalent to corr(ere) to run (< Latin currere) + -idore < Latin -i-tōrium;see -i-, -tory2
1590s, from It. corridore "a gallery," lit. "a runner," from correre "to run," from L. currere (see current). Originally of fortifications, meaning "long hallway" is first recorded 1814.