Some animals, such as vultures, prefer to let others do all the hard work of hunting and killing prey and will then arrive to pick over what is left of the kill. This behaviour - eating the left-over remains of other animals meals (dead organic matter) - is called scavenging. In inner cities, rats, foxes, pigeons and cats can become a problem when they scavenge the rubbish left by humans and breed in enormous numbers.

searching for and feeding on decaying matter; "scavenging hyenas and vultures"

Act or process of expelling the exhaust gases from the cylinder by some special means, as, in many four-cycle engines, by utilizing the momentum of the exhaust gases in a long exhaust pipe.

Removing combustion products from the combustion chamber.

the selective removal of material from the radioactive cloud by inert substances, such as precipitation, introduced into the fireball

searching for and salvaging anything useful from discarded material; "scavenging larvae"

The unauthorized and uncontrolled removal of material placed for collection or from a solid waste processing or disposal facility.

To search through data residue to gain knowledge of sensitive data.

The process of looking for letterboxes in 'likely places' without the use of clues. This is most common in Dartmoor where many tors are dotted with several dozen letterboxes at a time. Most letterboxers on Dartmoor start this way since the official clue book isn't available until you've already found 100 letterboxes and scavenging is the quickest and easiest way to get your first 100 finds.

Action of periodically scanning dynamic updates to the DNS server for stale resource records and purging these records.

See leaching.