'Scavenging' definitions:
Definition of 'Scavenging'
From: GCIDE
- Scavenging \Scav"eng*ing\, p. pr. & vb. n. of Scavenge. Hence, n. (Internal-combustion Engines) 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. [Webster 1913 Suppl.]