- without value, effect, consequence, or significance.
- being or amounting to nothing; nil; lacking; nonexistent.
- Mathematics. (of a set)
- of measure zero.
- being or amounting to zero.
- Electronics. a point of minimum signal reception, as on a radio direction finder or other electronic meter.
- to cancel; make null.
- null and void, without legal force or effect; not valid: This contract is null and void.
Origin of null
1555–65; < Latin nūllus, equivalent to n(e) not + ūllus any
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- without legal force; invalid; (esp in the phrase null and void)
- without value or consequence; useless
- lacking distinction; characterlessa null expression
- nonexistent; amounting to nothing
- quantitatively zero
- relating to zero
- (of a set) having no members
- (of a sequence) having zero as a limit
- physics involving measurement in which an instrument has a zero reading, as with a Wheatstone bridge
Word Origin for null
C16: from Latin nullus none, from ne not + ullus any
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for nulling
Online Etymology Dictionary, © 2010 Douglas Harper
- Of or relating to a set having no members or to zero magnitude.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.