• WordNet 3.6
    • v nullify make ineffective by counterbalancing the effect of "Her optimism neutralizes his gloom","This action will negate the effect of my efforts"
    • v nullify show to be invalid
    • v nullify declare invalid "The contract was annulled","void a plea"
    • ***
Webster's Revised Unabridged Dictionary
    • v. t Nullify To make void; to render invalid; to deprive of legal force or efficacy. "Such correspondence would at once nullify the conditions of the probationary system."
    • ***
Century Dictionary and Cyclopedia
    • nullify To annul; make void; render invalid; deprive of force or efficacy.
    • nullify Synonyms Annul, Annihilate, etc. See neutralize.
    • ***
Chambers's Twentieth Century Dictionary
    • v.t Nullify nul′i-fī to make null: to annul: to render void or of no force
    • pr.p Nullify null′ifying; pa.t. and pa.p. null′ified
    • ***


Webster's Revised Unabridged Dictionary
L. nullificare,; nullus, none + -ficare,in comp.) to make. See Null (a.), and -fy


In literature:

With the subtraction, or nullifying, of the moral force, all this will go.
"Is Life Worth Living?" by William Hurrell Mallock
Having passed the ordeals you nullified the effect by running away.
"The Adventures of Kathlyn" by Harold MacGrath
The people were not to be deceived by platitudes about "strategic purposes," or empty nothings about "a campaign to nullify it.
"Four Years in Rebel Capitals" by T. C. DeLeon
In this state of war the provisions of the Treaty of Paris and the Jay Treaty were nullified.
"The Journal of Negro History, Volume 5, 1920" by Various
All our work could easily be nullified.
"That Sweet Little Old Lady" by Gordon Randall Garrett (AKA Mark Phillips)
It did the latter by making Tyler, an out-and-out Nullifier, its Vice-President in 1840.
"History of the United States, Volume 3 (of 6)" by E. Benjamin Andrews
But there was a passionate voice speaking within her that presently nullified all such muffled murmurs.
"Romola" by George Eliot
The feeble check which they had devised was nullified.
"A History of the United States" by Cecil Chesterton
Nullifying the jammer had cost him seventy-five seconds.
"Pushbutton War" by Joseph P. Martino
I knew that I was the son of a nullifier, and the nephew of a Union man.
"The Creed of the Old South 1865-1915" by Basil L. Gildersleeve

In news:

Ryan's Claim About GM Plant Nullified .
Should Flyers' winning OT goal have been nullified .
But according to a report by ESPN, the trade could potentially be nullified .
Superintendent appointment in Detroit is nullified .
State high court nullified San Francisco gay marriages.
How Your Data Collection Experience Can Nullify Online Competitors.
K entucky and Virginia sparked a constitutional crisis in 1798 when they insisted that states have the right to nullify federal laws they find to be unconstitutional.
The contest of who can wear the most duck hunter bling ( duck calls) around their neck in a blind is pretty well nullified as this one can be used to attract a variety of ducks without switching to another call.
Egyptian President Nullifies Expanded Executive Powers.
Overnight, an official announced the president would nullify a decree that gave him expanded powers.
A federal appeals court is nullifying a Mississippi law that forbids phone spoofing of any type, ruling that Congress has authorized so-called "non- harmful " spoofing.
Physicians unite in urging Congress to nullify 2 percent Medicare sequester.
The pastor at a Kentucky church says he will nullify a vote taken by members of his congregation that bans interracial couples.
Brees threw an apparent scoring pass to Darren Sproles late in the first half, but it was nullified by a penalty.
The Senate on Nov 10 voted down a resolution to nullify the Federal Communications Commission's controversial net neutrality rules for broadband Internet providers, clearing the way for the rules to go into effect Nov 20.

In science:

At this situation the reflection coefficient at the load is nullified and SWR (standing wave ratio) obtains its minimal unitary value. Therefore, the maximization of the general expression Ζ.(31) is also associated with SWR minimization.
"D-Dimond1", Prototype Antenna RGA-05
In the presence of Byzantine nodes, such randomization assistance must be done atomically, avoiding Byzantine nodes choice’ that can potentially nullify the random bits selected.
Randomization Adaptive Self-Stabilization
The important message of the results shown here is the rather dramatic change in the r0 dependence of ξ nearly nullifying it for U (k) = 1 4 Uh (k).
Spin 1/2 Fermions in the Unitary Limit.III
The first way is to work with a fixed frame and to use penalization to nullify the fluid velocity where the wall crosses the camera frame (see left part of figure 3).
The camera method, or how to track numerically a deformable particle moving in a fluid network
Left: “classic” camera frame, penalization is used to nullify fluid velocity in the intersection between channels walls and camera frame.
The camera method, or how to track numerically a deformable particle moving in a fluid network