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cyanobacterium
This term is used primarily in scientific and academic registers, specifically within microbiology and ecology. It describes a unique group of organisms that bridge the gap between simple bacteria and complex plants due to their oxygen-producing photosynthetic capabilities.
Because the word is derived from Latin and Greek roots, it follows an irregular pluralization pattern. The singular form ends in -um, which changes to -a in the plural, a common characteristic of biological and chemical nomenclature.
Meanings
A photosynthetic bacterium that contains chlorophyll a and phycobilins, allowing it to produce oxygen through photosynthesis, often forming colonies or filaments.
The researcher isolated a specific strain of cyanobacterium from the lake sediment.