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scavenger

[ skav-in-jer ]
/ ˈskæv ɪn dʒər /
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noun
an animal or other organism that feeds on dead organic matter.
a person who searches through and collects items from discarded material.
a street cleaner.
Chemistry. a chemical that consumes or renders inactive the impurities in a mixture.
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Origin of scavenger

1520–30; earlier scavager<Anglo-French scawageour, equivalent to (e)scawage inspection (escaw(er) to inspect <Middle Dutch schauwen to look at (cognate with show) + -age-age) + -eour-or2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use scavenger in a sentence

British Dictionary definitions for scavenger

scavenger
/ (ˈskævɪndʒə) /

noun
a person who collects things discarded by others
any animal that feeds on decaying organic matter, esp on refuse
a substance added to a chemical reaction or mixture to counteract the effect of impurities
a person employed to clean the streets

Derived forms of scavenger

scavengery, noun

Word Origin for scavenger

C16: from Anglo-Norman scawager, from Old Norman French escauwage examination, from escauwer to scrutinize, of Germanic origin; related to Flemish scauwen
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

Scientific definitions for scavenger

scavenger
[ skăvən-jər ]

An animal that feeds on dead organisms, especially a carnivorous animal that eats dead animals rather than or in addition to hunting live prey. Vultures, hyenas, and wolves are scavengers.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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