vacuum Hear it!

vacuum definition - telecom
A space completely void of matter. Although a complete vacuum is unachievable on earth, outer space is theoretically a vacuum to within a few molecules per cubic inch.

Webster's New World Telecom Dictionary Copyright © 2008 by Wiley Publishing, Inc., Indianapolis, Indiana.
Used by arrangement with John Wiley & Sons, Inc.

Comments
Improve this definition.
Do you have more to add? Share your linguistic knowledge or observation.
/Register to save your comments.