nanobacterium
nan o bac te ri um |ˌnanōbakˈti (ə )rēəm, ˌnā -ˌnænoʊbækˈtɪəriəm | ▶noun ( pl. nanobacteria |-ˈti (ə )rēə | ) a microorganism about a tenth the size of the smallest normal bacteria, claimed to have been discovered in living tissue and in rock.
nano |bac ¦ter ¦ium |ˈnanəʊbakˌtɪərɪəm | ▶noun ( pl. nanobacteria ) a kind of microorganism about a tenth the size of the smallest normal bacteria, claimed to have been discovered in living tissue and in rock.