Let one ten thousandth of a bitcoin be 1/10000 b, where the unit of "b" uses lowercase since bitcoin is not a proper name, like h for hash instead of H for Hertz.  Then, 0.0001 b = 0.1 mb =  100 μb = 10 kiloSat, or say ".1 em-bee is 100 mu-bee is 10 kSa," if you like...or 10kS, i.e. 10 kSatoshi.