division archaebacteria

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Definition
  1. Noun:
    • A taxonomic division: In some biological classification systems, "division archaebacteria" is considered a kingdom-level taxonomic rank for a major group of microorganisms. These are the archaebacteria, distinct from true bacteria (eubacteria) and eukaryotes, often found in extreme environments.
Usage Examples
  • Noun:
    • The division archaebacteria includes organisms that thrive in hot springs and salt lakes.
    • Scientists study the division archaebacteria to understand early life on Earth.
Advanced Usage
  • In taxonomic context: The term is used in formal biological classification. While "Archaea" is now the more common and preferred domain name in the three-domain system (Archaea, Bacteria, Eukarya), "division archaebacteria" appears in older or alternative classifications where it was granted kingdom status.
    • In that textbook's classification scheme, the kingdom Monera was split into the division eubacteria and the division archaebacteria.
Variants and Related Words
  • Archaea (n): The current domain name encompassing organisms formerly classified within the division archaebacteria.
  • Archaebacterium (n, singular): A single organism belonging to this group.
  • Archaebacterial (adj): Relating to archaebacteria.
Synonyms
  • Archaeal kingdom: A synonymous phrase in taxonomic contexts.
  • Kingdom Archaea: A more modern equivalent term when referring to its taxonomic rank in some systems.
Related Phrases
  • "Member of the division archaebacteria": A phrase used to describe an organism's classification.
    • Methanogens are a well-known member of the division archaebacteria.
Noun
  1. in some classifications considered a kingdom

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