scavenger

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scavenger

(skăv′ən-jər)
n.
1. An animal, such as a vulture or housefly, that feeds on dead or decaying matter.
2. Chemistry A substance added to a mixture to remove or inactivate impurities.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

scavenger

any organism that feeds on carrion, refuse or material left unconsumed by other organisms. See also SAPROBIONT.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
"It is unacceptable the workers were left to scavenge in fields for food as they had not been paid for 35 days.
Second, melatonin not only detoxifies the highly toxic *OH, but also scavenges its precursor, [H.sub.2][O.sub.2].
"By the time it reaches retail it will have done its magic, but it will continue to scavenge on the retail shelf if oxygen transmission continues through the barrier," Cook says.
In addition, the EC50 values were 0.5 mg/mL (CJHP-N), 0.2 mg/mL (CJHP-1) and 0.1 mg/mL (CJHP-2), respectively, suggesting that the three polysaccharide fractions had a remarkable activity to scavenge superoxide radicals.
Second, during transects we also regularly encountered desert iguanas (Dipsosaurus dorsalis) which occasionally scavenge carrion (Norris, 1953).
The occurrence and extent of scavenging by Ringtails remains not well known, but it is not surprising that they may be willing to scavenge relatively large prey items when opportunities allow.
"Literally, to scavenge through someone's trash is just unsightly.
The influence of the type of solvent on the capacity to scavenge free radicals was much greater than that of temperature.
Antioxidants are both natural and synthetic compounds, able to scavenge free radicals and to inhibit oxidation processes [7].
Several studies have shown that plant derived antioxidant nutraceuticals scavenge free radicals and modulate oxidative stress-related degenerative effects [8].