Definition

1. Noun:
   • A cell that lacks a nucleus: An akaryote is a biological cell that does not contain a distinct, membrane-bound nucleus. This is a defining characteristic that distinguishes it from eukaryotic cells.

Usage Notes

• The term is a specialized scientific term used primarily in cell biology and microbiology. It is not commonly used in everyday language.
• It specifically refers to the structural characteristic of a cell (the absence of a nucleus), not to a taxonomic classification. For example, mature mammalian red blood cells (erythrocytes) are because they lose their nuclei during development.

Examples

• Noun:
  • The mature human erythrocyte is a classic example of an akaryote.
  • Under the microscope, the biologist identified the cell as an akaryote due to the absence of a nuclear envelope.

Advanced Usage

• The term is often used in technical descriptions and comparisons. For instance, one might contrast cells with nucleated cells in a discussion about cell evolution or function.
  • The study compared protein synthesis in nucleated cells and akaryotes.

Variants and Related Words

• Akaryotic (adj): Describing the condition of being an akaryote or lacking a nucleus.
  • The akaryotic state of red blood cells allows for more hemoglobin storage.

Synonyms

• Anucleate cell: A more common technical synonym for a cell without a nucleus.
• Non-nucleated cell: A descriptive phrase with the same meaning.

Antonyms

• Eukaryote: An organism whose cells contain a nucleus enclosed within a membrane.
• Nucleated cell: A cell that possesses a nucleus.

Noun

1. a cell without a nucleus (as an erythrocyte)