Dictionary.com
definitions
  • synonyms

vitiate

[vish-ee-eyt]
See more synonyms for vitiate on Thesaurus.com
verb (used with object), vi·ti·at·ed, vi·ti·at·ing.
  1. to impair the quality of; make faulty; spoil.
  2. to impair or weaken the effectiveness of.
  3. to debase; corrupt; pervert.
  4. to make legally defective or invalid; invalidate: to vitiate a claim.
Show More

Origin of vitiate

1525–35; < Latin vitiātus, past participle of vitiāre to spoil, derivative of vitium blemish, vice1 + -ātus -ate1
Related formsvi·ti·a·tion, nounvi·ti·a·tor, nounnon·vi·ti·a·tion, nounun·vi·ti·at·ed, adjectiveun·vi·ti·at·ing, adjective
Can be confusedameliorate obviate vitiate
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for vitiation

Historical Examples

  • The phenomena of puerperal fever originate in a vitiation of the fluids.

    A System of Midwifery

    Edward Rigby

  • There is the inefficiency of the syllogism, and also the vitiation produced by its employment.

    A Logic Of Facts

    George Jacob Holyoake

  • From remote ages it had been numbered among the elements, though considered liable to vitiation or foulness.

  • To correct this vitiation, to abolish these disastrous hates and misconceptions, elaborate learning was not needed.

  • When the atmosphere is vitiated, the oxygenating processes are diminished in ratio to the vitiation.

    Martyria

    Augustus C. Hamlin


British Dictionary definitions for vitiation

vitiate

verb (tr)
  1. to make faulty or imperfect
  2. to debase, pervert, or corrupt
  3. to destroy the force or legal effect of (a deed, etc)to vitiate a contract
Show More
Derived Formsvitiable, adjectivevitiation, nounvitiator, noun

Word Origin

C16: from Latin vitiāre to injure, from vitium a fault
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 vitiation

vitiate

v.

1530s, from Latin vitiatus, past participle of vitiare "to make faulty, injure, spoil, corrupt," from vitium "fault, defect, blemish, crime, vice" (see vice (n.1)). Related: Vitiated; vitiating.

Show More
Online Etymology Dictionary, © 2010 Douglas Harper

vitiation in Medicine

vitiation

(vĭsh′ē-āshən)
n.
  1. A change in a process that impairs utility or reduces efficiency.
Show More
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.