cyanobacterium
cyanobacterium cyanobacterium pl. cyanobacteria cyanobacteria [from the pigment phycocyanin.] any of a group of photosynthetic autotrophic prokaryotic microorganisms possessing characteristics of both bacteria and plants. When classed as bacteria, they are assigned to the Cyanobacteria; when classed as plants, they are assigned to the Cyanophyta. They were earlier named {blue-green algae}, a term less used now in technical discussions. Since the chlorophyll within the cyanobacteria is diffused throughout the cell, rather than being contained in chloroplasts, they are no longer thought of as true plants. [PJC]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • cyanobacterium — noun Etymology: New Latin Date: 1974 any of a major group (Cyanobacteria) of photosynthetic bacteria that have two photosystems, produce molecular oxygen, and use water as an electron donating substrate in photosynthesis called also blue green… …   New Collegiate Dictionary

  • cyanobacterium — cy·a·no·bac·te·ri·um (sī ə nō băk tîrʹē əm, sī ăn ō ) n. pl. cy·a·no·bac·te·ri·a ( tîrʹē ə) A photosynthetic bacterium of the class Coccogoneae or Hormogoneae, generally blue green in color and in some species capable of nitrogen fixation.… …   Universalium

  • cyanobacterium — noun Any of very many photosynthetic prokaryotic microorganisms, of phylum Cyanobacteria, once known as blue green algae Syn: blue green alga …   Wiktionary

  • cyanobacterium — cy·a·no·bac·te·ri·um bak tir ē əm n, pl ria ē ə 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 * * *… …   Medical dictionary

  • cyanobacterium — n. blue green alga, bacterium which lives in water and produces energy by photosynthesis (conversion of light energy into chemical energy) like algae (therefore the name blue green algae ) …   English contemporary dictionary

  • cyanobacterium — cy·a·no·bacterium …   English syllables

  • cyanobacterium — n. any prokaryotic organism of the division Cyanobacteria, found in many environments and capable of photosynthesizing. Also called blue green alga (see BLUE(1)). Etymology: CYANOGEN + BACTERIUM …   Useful english dictionary

  • Cyanobacterium UCYN-A — UCYN A cyanobacteria Scientific classification Kingdom: Bacteria Phylum: Cyanobacteria Order: Chroococcales …   Wikipedia

  • blue-green algae — cyanobacterium cyanobacterium pl. cyanobacteria cyanobacteria [from the pigment phycocyanin.] any of a group of photosynthetic autotrophic prokaryotic microorganisms possessing characteristics of both bacteria and plants. When classed as bacteria …   The Collaborative International Dictionary of English

  • cyanobacteria — cyanobacterium cyanobacterium pl. cyanobacteria cyanobacteria [from the pigment phycocyanin.] any of a group of photosynthetic autotrophic prokaryotic microorganisms possessing characteristics of both bacteria and plants. When classed as bacteria …   The Collaborative International Dictionary of English

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