null Hear it!

null definition - telecom
  1. Valueless; amounting to nothing; zero.
  2. In some computer programs, a field into which nothing is entered, not even a zero (0). In such programs, even a 0 can affect calculations. See also negative and positive.

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

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