Actinobacteria
Ac·ti·no·bac·te·ria (ak″tĭ-no-bak-tērґe-ə) [actino- + bacteria] 1. a morphologically and physiologically diverse phylum of bacteria grouped together on the basis of 16S rRNA sequence analysis, containing a large number of medically important organisms. 2. the sole class of bacteria of this phylum, divided into several phylogenetically distinct subclasses; medically important organisms are included in the subclasses Actinobacteridae and Coriobacteridae.
Medical dictionary.
2011.