equilibrium valve
noun
(in a reciprocating engine) a valve opening a passage from one end of a cylinder to the other to equalize pressure upon both faces of the piston.
Origin of equilibrium valve
First recorded in 1870–75
Words nearby equilibrium valve
equilibration,
equilibrist,
equilibrium,
equilibrium dialysis,
equilibrium price,
equilibrium valve,
equimolecular,
equine,
equine distemper,
equine encephalitis,
equine herpesvirus