verb (used with object)
to take or gather (something usable) from discarded material.
to cleanse of filth, as a street.
to expel burnt gases from (the cylinder of an internal-combustion engine).
to purify (molten metal) by introducing a substance that will
combine chemically with impurities.
verb (used without object)
(of an engine or cylinder) to become scavenged of burnt gases.
to search, especially for food.
Origin: 1635–45; Related forms
back formation from scavenger