Verb (used with object) : to contaminate a lake with sewage. ,to contaminate a laboratory.    From Dictionary.com. 

As Yoder (correctly) argues, Locke senses these "contaminating" complexities.    From Wordnik.com.  [From the (Ever) Complex to the (Never) Simple: A Response to R. Paul Yoder's] Reference

Can we speak of one system "contaminating" the other, or do the two merge in a productive dialectic?.    From Wordnik.com.  [Tragedy and the War of the Aesthetic] Reference

Monty suggests that despite — or because of — their wealth and political influence, the Jews are "contaminating" the nation with their "dirty" accents and their money.    From Wordnik.com.  [Caught in the Crossfire: Adrian Scott and the Politics of Americanism in 1940s Hollywood] Reference

Andy Burnham, warned against product placement "contaminating" our programmes.    From Wordnik.com.  [The Guardian World News] Reference

Rachel Maddow on Monday likened it to Tony Soprano's tactic of "contaminating" lawyers.    From Wordnik.com.  [AMERICAblog News] Reference

So 1,2,3,4 would be FL, FR, C, LFE .... but there is some FR that is "contaminating" the new.    From Wordnik.com.  [VideoHelp.com Forum] Reference

Arrowheads point to round to triangular-shaped cells found in early culture that represent "contaminating" tissue cells.    From Wordnik.com.  [TheHorse.com News] Reference

The Lancet of "contaminating" science over its ban on the drug mephedrone, which it claims was imposed for political reasons.    From Wordnik.com.  [The First Post: Latest] Reference

A large forensic tent was erected over the body, but Hill was not allowed to approach for fear of "contaminating" the scene, he said.    From Wordnik.com.  [Stuff.co.nz - Stuff] Reference

Page 55 yourself easy on the score of my 'contaminating' the sanctified vagrant! ".    From Wordnik.com.  [St. Elmo. A Novel.] Reference

"contaminating" effector T cells or the conversion of Tregs to proinflammatory Th17 cells.    From Wordnik.com.  [PLoS Biology: New Articles] Reference

This prevents them from dripping on and contaminating other foods.    From Wordnik.com.  [Raw and order: How to organize your refrigerator] Reference

Not long, however, was Sweden freed from his contaminating presence.    From Wordnik.com.  [The Swedish Revolution Under Gustavus Vasa] Reference

Yes, there is one more monstrous, deceitful, and contaminating than that.    From Wordnik.com.  [The Priest, The Woman And The Confessional] Reference

Avoid contaminating drinking containers with dust and fibers from the field.    From Wordnik.com.  [The CDC issues a public health alert on lead in artificial turf] Reference

And remember to keep your cooking surfaces clean to avoid cross-contaminating foods.    From Wordnik.com.  [Transcript of our Thanksgiving food safety chat] Reference

The contaminating editor may be useful as an hypothesis in certain particular cases.    From Wordnik.com.  [Epic and Romance Essays on Medieval Literature] Reference

In states like New Mexico and Colorado, hydrofracking is contaminating the drinking water.    From Wordnik.com.  [Kate Kelly: The Lesson We Can Learn From BP] Reference

The temperature's hovering around 90, and rotting corpses are contaminating water sources.    From Wordnik.com.  [Rains Punish China's Geologically Vulnerable Areas] Reference

To prevent contaminating yourself, don't "hug" the laundry on your way to the laundry room.    From Wordnik.com.  [To deal with swine flu at home, follow CDC's household-cleaning tips] Reference

They were airlifted from the area wrapped head-to-toe in plastic, to avoid contaminating others.    From Wordnik.com.  [Can It Happen Here?] Reference

With such a remarkable organism contaminating one's drink no wonder there is fear of some dread disease.    From Wordnik.com.  [The Home Medical Library, Volume V (of VI)] Reference

Since last June, McNeil has received 46 consumer complaints about particles contaminating its medications.    From Wordnik.com.  [Parents angered and confused by Tylenol recall] Reference

It is feared that her example might have a contaminating influence on the children or on her fellow workers.    From Wordnik.com.  [Woman Her Sex and Love Life] Reference

Contaminated waste material, also heavy in lead, was disposed of haphazardly nearby, contaminating soil and water sources.    From Wordnik.com.  [Nigeria gold rush: toxic quarry] Reference

Keep separate toasters and cutting boards for gluten-free foods to avoid contaminating them with foods that do have gluten.    From Wordnik.com.  [For the weekend: Gluten-free cooking made easy] Reference

The diaphragm, he believed, separated the heart, the seat of the soul, from the contaminating influences of the intestines.    From Wordnik.com.  [Outlines of Greek and Roman Medicine] Reference

She pulled her hands from under the lovely blooms and pushed them away as if there were something contaminating in their touch.    From Wordnik.com.  [Blue Aloes Stories of South Africa] Reference

In the Gaza Strip, seawater is contaminating groundwater supplies as fresh water is pumped out to supply the growing population.    From Wordnik.com.  [Wired Top Stories] Reference

Smith said "dispersant-treated oil that feels like peanut-butter goo may be contaminating some of the beds west of the Mississippi.".    From Wordnik.com.  [Susan Buchanan: State's Oyster Growers Weigh Options in Claims Process] Reference

This material acts as a "starter" or culture when pure, fresh milk is placed in the pail, contaminating it and causing it to become sour.    From Wordnik.com.  [Human Foods and Their Nutritive Value] Reference

People honestly didn't have the thought that those envelopes were contaminating everything along the way -- or they would have acted differently.    From Wordnik.com.  [Capitol Letter: Bad Pr] Reference