Definition

Noun: 1. A temporary, flexible extension of the cytoplasm of a cell (especially an amoeba or some white blood cells) used for movement and feeding. This structure is not permanent; the cell can extend and retract it as needed. It functions by flowing cytoplasm into the projection, allowing the cell to move toward or engulf objects.

Usage

• The term is used primarily in biology, specifically in cell biology, microbiology, and zoology, to describe a specific mode of cellular movement and nutrition.
• It is a countable noun (e.g., , or ).

Examples

• The amoeba extended a pseudopod to surround and ingest the food particle.
• White blood cells use pseudopods to crawl through tissues and engulf bacteria.
• Under the microscope, we observed the formation of multiple pseudopodia from the single-celled organism.

Advanced Usage

• "Form a pseudopod" / "Extend a pseudopod": Describes the action of creating this temporary projection.
  • The cell formed a pseudopod in the direction of the chemical signal.
• "Retract a pseudopod": Describes the action of pulling the projection back into the main cell body.
  • After capturing its prey, the organism retracted its pseudopod.

Variants and Related Words

• Pseudopodium (n): The plural form is often . This is the more formal, scientific term and is frequently used interchangeably with "pseudopod."
• Pseudopodal (adj): Relating to or resembling a pseudopod.
  • The pseudopodal movement was clearly visible.
• Lobopodium (n): A type of broad, blunt pseudopod.
• Filopodium (n): A type of thin, thread-like pseudopod.

Synonyms

• False foot: A direct, descriptive translation of the word's Greek roots ( = false, = foot).
• Cytoplasmic extension: A more general descriptive term.

Notes on Different Meanings

• The word pseudopod has a single, specific meaning in scientific English and is not used in other contexts or with different definitions.

Noun

1. temporary outgrowth used by some microorganisms as an organ of feeding or locomotion