contaminate

[ verb kuhn-tam-uh-neyt; noun, adjective kuhn-tam-uh-nit, -neyt ]
/ verb kənˈtæm əˌneɪt; noun, adjective kənˈtæm ə nɪt, -ˌneɪt /

verb (used with object), con·tam·i·nat·ed, con·tam·i·nat·ing.

to make impure or unsuitable by contact or mixture with something unclean, bad, etc.: to contaminate a lake with sewage.
to render harmful or unusable by adding radioactive material to: to contaminate a laboratory.

noun

something that contaminates or carries contamination; contaminant.

adjective

Obsolete. contaminated.

QUIZZES

GEE WHILLIKERS! WAIT TILL YOU SEE THIS WORD OF THE DAY QUIZ!

Do you remember all the words from last week, September 21–27, 2020? Then this quiz should be butyraceous.
Question 1 of 7
What does “yare” mean?

Origin of contaminate

1375–1425; late Middle English contaminaten<Latin contāminātus, past participle of contāmināre to defile, spoil, equivalent to con-con- + -tāminare, verbal derivative of *tāmen something touched <*tag-s-men, equivalent to tag-, variant stem of tangere to touch + -s-men resultative noun suffix; cf. examen

OTHER WORDS FROM contaminate

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for contaminate

British Dictionary definitions for contaminate

contaminate

verb (kənˈtæmɪˌneɪt) (tr)

to make impure, esp by touching or mixing; pollute
to make radioactive by the addition of radioactive material

adjective (kənˈtæmɪnɪt, -ˌneɪt)

archaic contaminated

Derived forms of contaminate

contaminable, adjectivecontaminant, nouncontaminative, adjectivecontaminator, noun

Word Origin for contaminate

C15: from Latin contamināre to defile; related to Latin contingere to touch
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

Medical definitions for contaminate

contaminate
[ kən-tămə-nāt′ ]

v.

To make impure or unclean by contact or mixture.
To expose to or permeate with radioactivity.

Other words from contaminate

con•tam•i•nant (-nənt) n.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.