Abstract: Provided is a cup shaped nozzle member and dispensing package assembly for dispensing or spraying a pumped or pressurized fluid drawing from a transportable container to generate a spray of fluid. The cup-shaped nozzle member mounted in said dispensing package and including a plurality of interaction chambers defined within the distal end wall wherein each interaction chamber defines a fluid channel that terminates distally in an exit orifice. At least one distally projecting platform rib member spaced from and proximate to said first discharge orifice along an outer surface of the distal end wall, wherein said distally projecting platform rib member has a selected distally projecting length which is at least as great as the length of the first distally projecting protuberance.