scavenge
To collect and remove refuse, or to search through refuse, carrion, or abandoned items for useful material.
Example
“We scavenged a couple of old beer cans for our art project.”
Other meanings
To remove unwanted material from something, especially to purify molten metal by removing impurities.
To expel the exhaust gases from the cylinder of an internal combustion engine, and draw in air for the next cycle.
Where this comes from
This definition is adapted from “scavenge” on Wiktionary, by its contributors, published under CC BY-SA 4.0. This page is published under the same licence.