A nozzle assembly or spray head including a lumen or duct for dispensing or spraying a pumped or pressurized liquid product or fluid from a valve, pump or actuator assembly drawing from a transportable container to generate an exhaust flow in the form of an oscillating spray of fluid droplets, comprising; (a) an actuator body having a distally projecting sealing (320, 820) having a post peripheral wall terminating at a distal or outer face, said actuator body including a fluid passage communicating with said lumen; (b) a cup-shaped fluidic circuit (100, 400, 600, 700) mounted in said actuator body member having a peripheral wall extending proximally into a bore in said actuator radially outwardly of said sealing post and having a distal radial wall comprising an inner face opposing said sealing post's distal or outer face to define a fluid channel including a chamber having an interaction region (120; 620; 720) between said body's sealing post and said cup-shaped fluidic circuit's peripheral wall and distal wall; (c) said chamber being in fluid communication with said actuator body's fluid passage to define a fluidic circuit oscillator inlet so said pressurized fluid may enter said fluid channel's chamber and interaction region (120; 620; 720); (d) said cup-shaped fluidic circuit distal wall's inner face being configured to define within said chamber a first power nozzle (122;622; 722) and second power nozzle (124; 624; 724), wherein said first power nozzle (122;622; 722) is configured to accelerate the movement of passing pressurized fluid flowing through said first power nozzle to form a first jet of fluid flowing into said chamber's interaction region, and said second power nozzle (124; 624; 724) is configured to accelerate the movement of passing pressurized fluid flowing through said second power nozzle (124; 624; 724), to form a second jet of fluid flowing into said chamber's interaction region (120; 620; 720), and wherein said first and second jets impinge upon one another at a selected inter-jet impingement angle and generate oscillating flow vortices within said fluid chamber's interaction region (120; 620; 720); (e) wherein said chamber's interaction region (120; 620; 720) is in fluid communication with a discharge orifice or power nozzle (130; 630; 730) defined in said fluidic circuit's distal wall, and said oscillating flow vortices exhaust from said discharge orifice (130; 630; 730) as an oscillating spray of substantially uniform fluid droplets in a selected spray pattern having a selected spray width and a selected spray thickness; (f) characterized in that said selected inter-jet impingement angle is 180 degrees and said oscillating flow vortices are generated within said fluid channel's interaction region (120; 620; 720) by opposing jets. (a) an actuator body having a distally projecting sealing (320, 820) having a post peripheral wall terminating at a distal or outer face, said actuator body including a fluid passage communicating with said lumen; (b) a cup-shaped fluidic circuit (100, 400, 600, 700) mounted in said actuator body member having a peripheral wall extending proximally into a bore in said actuator radially outwardly of said sealing post and having a distal radial wall comprising an inner face opposing said sealing post's distal or outer face to define a fluid channel including a chamber having an interaction region (120; 620; 720) between said body's sealing post and said cup-shaped fluidic circuit's peripheral wall and distal wall; (c) said chamber being in fluid communication with said actuator body's fluid passage to define a fluidic circuit oscillator inlet so said pressurized fluid may enter said fluid channel's chamber and interaction region (120; 620; 720); (d) said cup-shaped fluidic circuit distal wall's inner face being configured to define within said chamber a first power nozzle (122;622; 722) and second power nozzle (124; 624; 724), wherein said first power nozzle (122;622; 722) is configured to accelerate the movement of passing pressurized fluid flowing through said first power nozzle to form a first jet of fluid flowing into said chamber's interaction region, and said second power nozzle (124; 624; 724) is configured to accelerate the movement of passing pressurized fluid flowing through said second power nozzle (124; 624; 724), to form a second jet of fluid flowing into said chamber's interaction region (120; 620; 720), and wherein said first and second jets impinge upon one another at a selected inter-jet impingement angle and generate oscillating flow vortices within said fluid chamber's interaction region (120; 620; 720); (e) wherein said chamber's interaction region (120; 620; 720) is in fluid communication with a discharge orifice or power nozzle (130; 630; 730) defined in said fluidic circuit's distal wall, and said oscillating flow vortices exhaust from said discharge orifice (130; 630; 730) as an oscillating spray of substantially uniform fluid droplets in a selected spray pattern having a selected spray width and a selected spray thickness; (f) characterized in that said selected inter-jet impingement angle is 180 degrees and said oscillating flow vortices are generated within said fluid channel's interaction region (120; 620; 720) by opposing jets.