society > occupation and work > equipment > machine > machines which impart power > engine > internal-combustion engine > [adjective] > removing deposits (3)
Removal of combustion products from the cylinders of internal-combustion engines. Also as participial adj.
= scavenging, n. 2a. Frequently attributive.
Involving flow in one direction only; spec. applied to: (a) a type of reciprocating steam engine in which the steam in the cylinder flows in one…