preventer Definition

wellhead, bilge pump, pipe, diverter, flange, rig, gasket, hose, plunger, standpipe, nozzle, arrester, aerator, drogue, lubricator, injector, ballcock, winch, radiator hose, containment, forestay, deepwater, aspirator, solenoid, valves, gusher, riser pipe, seafloor, annulus, cofferdam, casing, suction, dispersant, drilling rig, windlass, endotracheal tube, hydraulic ram, reamer, hydrates, gushing, deadman, propellent, longeron, bladder sphincter, breeches buoy, davits, deflector, riser, inferior vena cava, amyl nitrite, derrick, embolectomy, immersion heater, spile, blackhead, keyways, inhaler, pessary, propeller shaft, valsalva, hydraulic pump, tube, drip pan, strainers, ventolin, pulmonary valve, piston rod, clarifier, methylene blue, oilrig, anticoagulant medication, floor joist, dilator, digitalis, ventouse, idler pulley, sphincter muscle, subfloor, procardia, tail rotor, cotter pin, benzocaine, arterial plaque, cerumen, tieback, overhand knot, seabed, paracentesis, pipework, dental amalgam, hulls, canula, atomizer, laminaria, expectorants, bathyscaph, eductor, thoracic aorta, azor, polytetrafluoroethylene,