Definition

1. Noun:
   • A taxonomic division of prokaryotic organisms: "Division Cyanophyta" refers to a major taxonomic group of bacteria that obtain energy through photosynthesis. They are often called blue-green algae, though they are not true algae but bacteria.
   • Coextensive with the class Cyanophyceae: The term is essentially synonymous with the class Cyanophyceae, encompassing all cyanobacteria.

Usage Examples

• Noun:
  • Scientists study division Cyanophyta to understand early photosynthetic life.
  • The pond's green scum was identified as a member of division Cyanophyta.

Advanced Usage

• In taxonomic hierarchy: Used in formal biological classification to denote this specific group of organisms.
  • The organism was classified under division Cyanophyta based on its cellular structure.

Variants and Related Words

• Cyanobacteria (n): The more modern and commonly used scientific term for the same group of organisms.
  • Cyanobacteria are found in a wide range of aquatic environments.
• Blue-green algae (n): The common, informal name for these organisms.
  • The bloom of blue-green algae can be toxic.

Synonyms

• Cyanobacteria: The preferred term in modern microbiology.
• Blue-green algae: The common descriptive name.

Related Phrases

• Cyanobacterial bloom: A rapid increase in the population of cyanobacteria in an aquatic system.
  • The lake was closed due to a harmful cyanobacterial bloom.

Noun

1. prokaryotic organisms sometimes considered a class or phylum or subkingdom; coextensive with the Cyanophyceae: cyanobacteria (blue-green algae)