The Collaborative International Dictionary of English v.0.48:

Desmobacteria \Des`mo*bac*te"ri*a\
   (d[e^]s`m[-o]*b[a^]k*t[=e]"r[i^]*[.a]), n. pl. [Gr. desmo`s
   bond + E. bacteria.]
   See Microbacteria.
   [1913 Webster]