from the GNU version of the Collaborative International Dictionary of English.
- any of a group of photosynthetic 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 are now known to be prokaryotic, and are usually called
cyanobacteriain technical contexts. See cyanobacterium.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun Any member of the
cyanobacteria; a primitive photosyntheticorganism similar to bacteriawhich is thought to have generated the first oxygenin the Earth's atmosphere.
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