un contaminated

contaminate

[v. kuhn-tam-uh-neyt; n., adj. kuhn-tam-uh-nit, -neyt]
verb (used with object), contaminated, contaminating.
1.
to make impure or unsuitable by contact or mixture with something unclean, bad, etc.: to contaminate a lake with sewage.
2.
to render harmful or unusable by adding radioactive material to: to contaminate a laboratory.
noun
3.
something that contaminates or carries contamination; contaminant.
adjective
4.
Obsolete, contaminated.

Origin:
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

contaminable, adjective
contaminative, adjective
contaminator, noun
contaminous, adjective
noncontaminable, adjective
noncontaminative, adjective
recontaminate, verb (used with object), recontaminated, recontaminating.
self-contaminating, adjective
uncontaminable, adjective
uncontaminated, adjective
uncontaminative, adjective


1. defile, pollute, taint, infect, poison, corrupt.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
contaminate
 
vb
1.  to make impure, esp by touching or mixing; pollute
2.  to make radioactive by the addition of radioactive material
 
adj
3.  archaic contaminated
 
[C15: from Latin contamināre to defile; related to Latin contingere to touch]
 
con'taminable
 
adj
 
con'taminant
 
n
 
con'taminative
 
adj
 
con'taminator
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

contaminate
1520s, from O.Fr. contaminer, from L. contaminatus, pp. of contaminare "to defile," from contamen "contact, pollution," from com- "together" + *tag-, base of tangere "to touch" (see tangent). Related: Contaminant (1934).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

contaminate con·tam·i·nate (kən-tām'ə-nāt')
v. con·tam·i·nated, con·tam·i·nat·ing, con·tam·i·nates

  1. To make impure or unclean by contact or mixture.

  2. To expose to or permeate with radioactivity.


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.
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