cyanobacterium
noun
cy·a·no·bac·te·ri·um
| \ ˌsī-ə-nō-bak-ˈtir-ē-əm
, sī-ˌa-nō-\
, sī-ˌa-nō-\
Definition of cyanobacterium
: any of a major group (Cyanobacteria) of photosynthetic bacteria that are single-celled but often form colonies in the form of filaments, sheets, or spheres and are found in diverse environments (such as salt and fresh water, soils, and on rocks)
Note: Like other bacteria, cyanobacteria lack a nuclear membrane and membrane-bound organelles and have cell walls containing peptidoglycan. However, cyanobacteria were more commonly grouped with algae in the past because they possess a type of chlorophyll (chlorophyll a) not found in other bacteria and because they produce oxygen as a by-product of photosynthesis.
— called also blue-green alga
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Other Words from cyanobacterium
cyanobacterial
\ ˌsī-ə-nō-bak-ˈtir-ē-əl
, sī-ˌa-nō- \
adjective
, sī-ˌa-nō- \
adjective
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More Definitions for cyanobacterium
cyanobacterium
noun
cy·a·no·bac·te·ri·um
| \ -bak-ˈtir-ē-əm
\
\
plural cyanobacteria\ -ē-ə \
Medical Definition of cyanobacterium
: any of a major group (Cyanobacteria) of photosynthetic bacteria that produce molecular oxygen and use water as an electron-donating substrate in photosynthesis
— called also blue-green alga