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Answer for the clue "A substance that contaminates ", 11 letters:
contaminant

Word definitions for contaminant in dictionaries

WordNet Word definitions in WordNet
n. a substance that contaminates [syn: contamination ]

Wiktionary Word definitions in Wiktionary
n. That which contaminates; an impurity; foreign matter.

Longman Dictionary of Contemporary English Word definitions in Longman Dictionary of Contemporary English
noun EXAMPLES FROM CORPUS ▪ A hand-held chemical agent monitor determines whether any contaminants are still present. ▪ Autopsies have identified at least 24 different contaminants in their bodies. ▪ Because of their stability, they are hard to dispose ...

Usage examples of contaminant.

If a contaminant had been in the Marcaine, it had to have been in the 30 cc ampule in both situations.

If the contaminant turns out to be something like this batrachotoxin, its choice is diabolically ingenious.

Metals and fossil fuels are nonrenewable, and the ability of Earth to absorb contaminants and by-products was already being strained by our present stable global population of 2,800,000,000.

Whatever contaminants there are in the air here, those poor shmucks are especially vulnerable to em.

All this meant to Jeffrey that if he was thinking of a contaminant, it would have to have been a compound that mirrored local anesthetics to an extent, something like nicotine.

I correct in assuming that no byproducts from that element of your project would appear on my list of contaminants from Loki?

Rumor had it that Dewhurst had developed some wild theory that the continuously recycled water on the big donuts contained contaminants that would have everyone who drank it down with liver cancer in five to seven years.

If there had been a contaminant it would also have to have been in an extremely small, nanomolar amount.

We would have scrubbers to remove both carbon dioxide and most contaminants that might show up in our air, and detectors for carbon monoxide and a wide range of other poisons.

If you're still developing them, am I correct in assuming that no byproducts from that element of your project would appear on my list of contaminants from Loki?

And not only does it limit most contaminants at only two-tenths of one percent, but in combination with the pressed pea juice you discovered as a medium, the yields are thirty to forty percent above baseline.

In a 1945 study done in Wisconsin, "37 different chemicals were tested for their ability to prevent the growth of contaminants and still allow penicillin production in contaminated shake flask fermentations.

Of the chemicals tested, only borax and boric acid could be used at a level high enough to delay the growth of contaminants and still not interfere with penicillin production.

We identified dozens of contaminants, but none of them appear responsible.

Another thirty-six hours should see all industrial contaminants that Massarde hid away in the underground storage vaults destroyed.