Definition of "aqueduct" []

• A pipe or channel designed to transport water from a remote source, usually by gravity. (noun)
• A bridgelike structure supporting a conduit or canal passing over a river or low ground. (noun)
• Anatomy A channel or passage in an organ or a body part, especially such a channel for conveying fluid. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "This aqueduct is a narrow canal in the center of the brain through which CSF moves between the third and fourth ventricle (chambers in the brain that produce and store CSF)."
• "Blockage at the aqueduct is assumed when the lateral and third ventricles are enlarged proximal to the obstruction, and the fourth ventricle is relatively small."
• "This easy hike takes about four hours and walking on the aqueduct is interesting."