heliobacterium

== English == === Etymology === From helio- +‎ bacterium. === Noun === heliobacterium (plural heliobacteria) Any of the Heliobacteriaceae, a family of photoheterotrophic bacteria, using bacteriochlorophyll to convert light energy into chemical energy, exclusively in anaerobic conditions ==== Derived terms ==== heliobacterial === Further reading === Heliobacteria on Wikipedia.Wikipedia