leukocyte
Definition
Noun: - A type of blood cell that is part of the body's immune system. Its primary functions include engulfing and destroying bacteria, fungi, and other harmful particles to protect the body from infection and disease.
Usage
- The word "leukocyte" is a scientific and medical term. It is used in formal contexts such as biology, medicine, and healthcare discussions.
- It typically functions as a countable noun (e.g., , ).
Examples
- A high count of leukocytes in the blood can indicate an infection.
- The primary function of a leukocyte is to defend the body against pathogens.
- Under the microscope, we observed how the leukocyte engulfed the bacteria.
Advanced Usage
- "Leukocyte adhesion deficiency": A medical condition where leukocytes cannot move to sites of infection effectively.
- "Leukocyte esterase": An enzyme produced by leukocytes, often tested for in urinalysis.
Variants and Related Words
- Leucocyte: An alternative spelling, common in British English.
- White blood cell (WBC): The common, non-technical synonym for leukocyte.
- Leukocytosis (n): A condition characterized by an increased number of leukocytes in the blood.
Synonyms
- White blood cell
- White corpuscle
Antonyms
- Erythrocyte: A red blood cell, which carries oxygen, in contrast to the defensive role of leukocytes.
Noun
-
blood cells that engulf and digest bacteria and fungi; an important part of the body's defense system
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