cor·ri·dor (kôrĭ-dər, -dôr′, kŏr-)
1. A narrow hallway, passageway, or gallery, often with rooms or apartments opening onto it.
a. A tract of land designated or used for a specific purpose, as for railroad lines, highways, or pipelines.
b. A route designated for a specific purpose: a hazardous material corridor; a sea corridor for shipping; a flight corridor.
c. A route or tract of land used by migrating animals.
3. A thickly populated strip of land connecting two or more urban areas: people who live in the Boston-Washington corridor.
corridors of power
The places or positions from which people in authority wield power.
[French, from Italian corridore, from correre, to run, from Latin currere; see kers- in the Appendix of Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.