Orifice 362250 220965336 2008-06-22T12:49:31Z Chlor 1627 [[Back Orifice]] {{disamb}} An orifice is any opening, [[mouth]], hole or vent, as of a pipe, plate, or a body. * [[Body orifice]] * [[Orifice plate]] * [[calibrated orifice]] * [[Nozzle]] * [[Back Orifice]] ==See also== * [[choked flow]] * [[needle valve]] * [[Venturi effect]] * [[Flow measurement]] * [[John ]]