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.
Idioms about null
null and void, without legal force or effect; not valid: This contract is null and void.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use null in a sentence
Researchers could only conjecture about why that might be the case, because the null ritual forced them to assume that there is no effect.How the strange idea of ‘statistical significance’ was born | Bruce Bower | August 12, 2021 | Science News
If you’re a crypto advertiser, your existing certification will soon be null.Changes for crypto advertising and Twitter gets Fleet Ads; Friday’s daily brief | Carolyn Lyden | June 4, 2021 | Search Engine Land
To me the null hypothesis is that that natural barefoot or minimal shoe is probably healthier than a more conventional shoe unless you can prove otherwise.
To test that, we also should consider a null hypothesis — one that states there’s no effect of a tea cozy.
If an fMRI study ends up with a null or lackluster result, you can’t always go back and run another version of the study.
“A suspended sentence becomes null and void after a certain period of time,” Rofugaran said.Iran Court Sentences ‘Happy’ Dancers to 6 months and 91 Lashes | IranWire | September 17, 2014 | THE DAILY BEAST
Because all of the Rescued Film Project images are scanned to digital, the necessity of a darkroom is null.
All this means the Constitutional Court could declare election results null and void.
Thus, a law that is unjust is morally null and void, and must be defied until it is legally null and void as well.Alex Haley’s 1965 Playboy Interview with Rev. Martin Luther King Jr. | Alex Haley | January 19, 2014 | THE DAILY BEAST
Journals aren't interested in null results or "yup, we replicated that other study"; they want new studies with new findings.
It also declared the acts of any partnership into which such spiritual person had been introduced to be null and void.The History of England in Three Volumes, Vol.III. | E. Farr and E. H. Nolan
Everything which the revolutionary party had done since August 18,1789, was declared null and void.Belgium | George W. T. (George William Thomson) Omond
In either case, according to the learned Dr. Sicklewit, the ceremony is utterly null and void of effect.The Fiend's Delight | Dod Grile
He had alleged that she was a woman of no character, and he had further alleged that their marriage was null and void.Fair Margaret | H. Rider Haggard
There is no qualification that if we do not deem them legal we can treat them as null and void.Nullification, Secession Webster's Argument and the Kentucky and Virginia Resolutions | Caleb William Loring
British Dictionary definitions for null
without legal force; invalid; (esp in the phrase null and void)
without value or consequence; useless
lacking distinction; characterless: a null expression
nonexistent; amounting to nothing
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
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
Scientific definitions for null
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.