double overhead camshaft: Meaning and Definition of

dou'ble o'verhead cam'shaft

Pronunciation: [key]
— Auto. Auto.
  1. a pair of overhead camshafts, one to operate the intake valves and the other to operate the exhaust valves. Abbr.: DOHC
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.