I agree that each decimal place doesn't really need its own name.  For me 0.0001 BTC is either 0.1 mBTC (millibitcoins/millibits/em-bits/em-bitcoins - whichever you fancy) or 100 uBTC (microbitcoins/microbits/u-bits).  That being said I chose decimillibit since it follows the same format.