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verb (used with object), e·rad·i·cat·ed, e·rad·i·cat·ing.
  1. to remove or destroy utterly; extirpate: to eradicate smallpox throughout the world.
  2. to erase by rubbing or by means of a chemical solvent: to eradicate a spot.
  3. to pull up by the roots: to eradicate weeds.

Origin of eradicate

1555–65; < Latin ērādīcātus rooted out (past participle of ērādīcāre), equivalent to ē- e-1 + rādīc- (stem of rādīx) root1 + -ātus -ate1
Related formse·rad·i·cant [ih-rad-i-kuhnt] /ɪˈræd ɪ kənt/, adjective, noune·rad·i·ca·tion, noune·rad·i·ca·tive, adjectivee·rad·i·ca·tor, nounnon·e·rad·i·ca·tive, adjectiveun·e·rad·i·cat·ed, adjectiveun·e·rad·i·ca·tive, adjective

Synonyms for eradicate

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Synonym study

1. See abolish. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for eradicator

Historical Examples of eradicator

  • Oliver had taken to his side the oldest tigrero, or "vermin" eradicator of the farm, as his pilot.

  • When the innocent wood pussy paused after eight performances I felt assured that of course he must be out of eradicator.

British Dictionary definitions for eradicator


verb (tr)
  1. to obliterate; stamp out
  2. to pull or tear up by the roots
Derived Formseradicable, adjectiveeradicably, adverberadication, nouneradicative, adjectiveeradicator, noun

Word Origin for eradicate

C16: from Latin ērādīcāre to uproot, from ex- 1 + rādīx root
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 eradicator



early 15c., from Latin eradicatus, past participle of eradicare "to root out" (see eradication). Related: Eradicated; eradicating; eradicable.

Online Etymology Dictionary, © 2010 Douglas Harper