• WordNet 3.6
    • v vitiate take away the legal force of or render ineffective "invalidate a contract"
    • v vitiate make imperfect "nothing marred her beauty"
    • v vitiate corrupt morally or by intemperance or sensuality "debauch the young people with wine and women","Socrates was accused of corrupting young men","Do school counselors subvert young children?","corrupt the morals"
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Webster's Revised Unabridged Dictionary
    • Vitiate To cause to fail of effect, either wholly or in part; to make void; to destroy, as the validity or binding force of an instrument or transaction; to annul; as, any undue influence exerted on a jury vitiates their verdict; fraud vitiates a contract.
    • Vitiate To make vicious, faulty, or imperfect; to render defective; to injure the substance or qualities of; to impair; to contaminate; to spoil; as, exaggeration vitiates a style of writing; sewer gas vitiates the air. "A will vitiated and growth out of love with the truth disposes the understanding to error and delusion.""Without care it may be used to vitiate our minds.""This undistinguishing complaisance will vitiate the taste of readers."
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Century Dictionary and Cyclopedia
    • vitiate To render vicious, faulty, or imperfect; injure the quality or substance of; cause to be defective; impair; spoil; corrupt: as, a vitiated taste.
    • vitiate To cause to fail of effect, either in whole or in part; render invalid or of no effect; destroy the validity or binding force of, as of a legal instrument or a transaction; divest of legal value or authority; invalidate: as, any undue influence exerted on a jury vitiates their verdict; fraud vitiates a contact; a court is vitiated by the presence of unqualified persons sitting as members of it.
    • vitiate Synonyms Pollute, Corrupt, etc. (see taint), debase, deprave.
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Chambers's Twentieth Century Dictionary
    • v.t Vitiate vish′i-āt to render faulty or defective: to make less pure: to deprave: to taint—earlier Vi′ciate
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Webster's Revised Unabridged Dictionary
L. vitiatus, p. p. vitiare, to vitiate, fr. vitium, a fault, vice. See Vice a fault
Chambers's Twentieth Century Dictionary
L. vitiāre, -ātumvitium. See Vice (2).


In literature:

Vitiated as it may be by crudity and incoherency, it has at any rate the freshness of a great emotion.
"A Little Tour in France" by Henry James
The vitiated air might rise above the apertures, and so accumulate without the means of escape.
"Notes and Queries, Number 236, May 6, 1854" by Various
No more at school than at home was his life vitiated by vices.
"Ulysses S. Grant" by Walter Allen
And yet, how such Bodies, when unfrozen, will appear quite vitiated by the excessive Cold?
"Philosophical Transactions of the Royal Society - Vol 1 - 1666" by Various
Nobody could have lived long shut up in that space, breathing the vitiated air.
"Dorothy's House Party" by Evelyn Raymond
All this must have unavoidably vitiated Mr. Seward's better nature.
"Diary from March 4, 1861, to November 12, 1862" by Adam Gurowski
And it grows into a bastard of truth, exhaling odors as vitiated as the breath of a toad!
"Sunlight Patch" by Credo Fitch Harris
But consideration shows that there are two ways in which these last comparisons are vitiated.
"Essays: Scientific, Political, & Speculative, Vol. I" by Herbert Spencer
The flesh of man was incurably vitiated, and if he was to be saved a new body must be prepared for him.
"Bunyan" by James Anthony Froude
His entire psychology, both social and individual, is vitiated by a naive and headstrong intellectualism.
"Shelley, Godwin and Their Circle" by H. N. Brailsford

In poetry:

Still worse, a moral degradation
Thus cradled, vitiates the race;
Among the rising generation
A lust for slaughter grows apace.
"Bird Slaughter" by John Lawson Stoddard

In news:

The Environmental Protection Agency has strenuously objected to the Energy Department 's recommendations to the White House to revise air pollution regulations, saying the proposals would "vitiate" the nation's clean air policy.
It notes the Latin root vitium means "fault, vice," and defines it first as "to make faulty or defective" with a quotation from William Styron: "The comic impact is vitiated by obvious haste".

In science:

The conservation of the topological charge is vitiated only if the field g(~x, t) cannot be defined without singularities.
Color Skyrmions in the Quark-Gluon Plasma
The short lifetime of the muon (2.2 µs at rest) vitiates all beam-cooling methods currently in use (electron, stochastic, and laser cooling).
Muon Cooling and Future Muon Facilities: The Coming Decade
While this discussion does not prove one way or the other the importance of non-LTE effects, it does show that there is a need for further work in this area. In the discussion to follow we must keep in mind that there may be effects in the abundances that will ultimately vitiate the conclusions reached here.
The Distribution of the Elements in the Galactic Disk III. A Reconsideration of Cepheids from l = 30 to 250 Degrees
The uncertainties in binary evolution, particularly in the all-important mass and angular momentum loss rates, are so great as to vitiate any attempt at present to build such a library.
MODEST-1: Integrating Stellar Evolution and Stellar Dynamics
Experiments carried out to determine the effect on field emission of dielectric films showed that Pb whiskers could grow through an Al2O3 overcoating and vitiate any reduction of the electric field by the dielectric.
Thin Dielectric Films in Superconducting Cavities