Definition

Noun: * A type of organism whose cells lack a membrane-bound nucleus and other membrane-bound organelles. The genetic material (DNA) in a procaryote is typically a single, circular chromosome located in a region of the cell called the nucleoid. Bacteria and archaea are the two domains of life classified as procaryotes.

Usage Examples

• Noun:
  • A procaryote is generally simpler in structure than a eukaryote.
  • The study of the procaryote revealed its resistance to antibiotics.
  • Scientists classify life into three domains: Bacteria and Archaea, which are procaryotes, and Eukarya.

Advanced Usage

• The term is often used in contrast to eukaryote to highlight fundamental biological differences in cellular organization.
  • The key distinction between a procaryote and a eukaryote is the presence of a true nucleus.
• It is commonly used in scientific writing in fields like microbiology, genetics, and evolutionary biology.

Variants and Related Words

• Prokaryote (noun): This is the more common modern spelling. "Procaryote" and "prokaryote" are interchangeable, with "prokaryote" being prevalent in contemporary texts.
• Prokaryotic (adjective): Describing the characteristics of a procaryote.
  • Bacterial cells have a prokaryotic cell structure.
• Eukaryote (noun): An organism whose cells contain a nucleus enclosed within a membrane, the antonym of procaryote.

Synonyms

• Prokaryotic organism: A more descriptive synonym.
• Moneran (noun): An older taxonomic term that is largely synonymous but less commonly used today.

Notes on Meaning

• The primary and sole meaning of "procaryote" is biological, referring to the specific cellular organization described above. It does not have other general or idiomatic meanings.

Noun

1. a unicellular organism having cells lacking membrane-bound nuclei; bacteria are the prime example but also included are blue-green algae and actinomycetes and mycoplasma