noun. This synonym for "diversity" never quite caught on.
Real citation: "And this is why we had no HPM for the last two days. Just look at all the differentyness!"
(RubberPiggy, June 11, 2005, http://piratemonkeys.proboards41.com/index.cgi?board=board&action=display&thread=1118492309)
Made-up citation: "I should've studied biodifferentyness instead of literature. I prefer monkeys to Shakespeare."