scavenger cell
Definition
Noun: A type of white blood cell (phagocyte) that engulfs, ingests, and destroys cellular debris, foreign particles, and invading microorganisms as part of the body's immune defense and cleanup processes.
Usage
The term "scavenger cell" is used in biology and medicine to describe a cell whose primary function is to consume waste material and pathogens. * Macrophages are a classic example of a scavenger cell. * The scavenger cell moved toward the site of the bacterial infection.
Advanced Usage
- Professional Context: In immunology and pathology texts, "scavenger cell" is a descriptive, functional term often used synonymously with specific types of phagocytes, such as macrophages or microglia in the nervous system.
- The study focused on the role of the microglial scavenger cell in clearing amyloid plaques.
Variants and Related Words
- Phagocyte (n): The more precise scientific term for a cell that performs phagocytosis (engulfing particles). All scavenger cells are phagocytes.
- Macrophage (n): A large, mature type of scavenger cell found in tissues.
- Microglia (n): A type of scavenger cell specific to the central nervous system.
Synonyms
- Phagocyte
- Macrophage (context-dependent)
- Histiocyte (a macrophage in connective tissue)
Related Phrases / Idioms
- Phagocytic cell: A technical phrase with the same meaning as scavenger cell, emphasizing the process of phagocytosis.
- Neutrophils are also phagocytic cells but are not always classified under the general term "scavenger cell".
Noun
-
a cell that engulfs and digests debris and invading microorganisms
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