What does RNG stand for?

What does RNG mean?

RNG	Ranger Governmental » Military
RNG	Really Nice Guy Internet » Chat
RNG	Ringing tone ( Nokia Communicator) Computing » File Extensions
RNG	Random Number Gyrator Miscellaneous » Funnies
RNG	Ramen Noodle Girl Miscellaneous » Unclassified
RNG	Range Governmental » NASA
RNG	Random Number Generator Academic & Science » Mathematics
RNG	Range Academic & Science » Mathematics
RNG	Range River Gold Ltd Business » ASX Symbols

rng(Noun): An algebraic structure satisfying the same properties as a ring, except that multiplication need not have an identity element.