white blood cell
C1technical, medical, academic
Definition
Meaning
A type of blood cell that is part of the body's immune system, responsible for fighting infection and disease.
A colorless cell (leukocyte) that circulates in the blood and body fluids, involved in counteracting foreign substances and disease. It can be subdivided into types such as lymphocytes, neutrophils, and monocytes.
Linguistics
Semantic Notes
Always a singular noun, but often used in the plural ('white blood cells') when referring to them collectively. The term implies a biological function of defense and is strongly associated with health metrics and disease diagnosis.
Dialectal Variation
British vs American Usage
Differences
No difference in term. Both use 'white blood cell' and the abbreviation 'WBC'. The British term 'leucocyte' is common in technical writing, while American English prefers 'leukocyte', but both are understood globally.
Connotations
Identical. Both denote the same biological entity with the same clinical connotations.
Frequency
The term is equally common in both dialects within medical and scientific contexts.
Vocabulary
Collocations
Grammar
Valency Patterns
The patient has a [high/low] white blood cell count.The [infection/virus] was attacked by white blood cells.A test showed an increase in white blood cells.Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “The body's soldiers (metaphorical)”
Usage
Context Usage
Business
Rare, except in pharmaceutical or biotech contexts discussing drug effects.
Academic
Common in biology, medicine, and health science textbooks and research papers.
Everyday
Used when discussing health, illness, or blood test results with a doctor.
Technical
Core term in haematology, immunology, and clinical diagnostics; often abbreviated to WBC.
Examples
By Part of Speech
verb
British English
- The infection caused her white blood cells to proliferate.
- The medication is intended to boost white blood cell production.
American English
- The virus triggers the body to white-blood-cell up. (Informal/rare)
- Chemotherapy can white blood cell count down. (Informal/rare)
adjective
British English
- The white-blood-cell count was concerning.
- She underwent a white-blood-cell analysis.
American English
- The WBC (white blood cell) count came back normal.
- It's a white-blood-cell-related disorder.
Examples
By CEFR Level
- The doctor checked my white blood cells.
- If you have an infection, your white blood cell count is usually high.
- Certain antibiotics can temporarily reduce the number of white blood cells in your bloodstream.
- Neutrophils, a subtype of white blood cells, are the first responders to bacterial invasion and utilise phagocytosis to engulf pathogens.
Learning
Memory Aids
Mnemonic
Think: WHITE knights in shining armour (white cells) defend the BLOOD castle from invading germs.
Conceptual Metaphor
THE BODY IS A FORTRESS; WHITE BLOOD CELLS ARE DEFENDERS/SOLDIERS.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid direct calque 'белая кровяная клетка' in formal scientific contexts; the standard term is 'лейкоцит'.
- The English term is a compound noun; in Russian, it's a single word ('лейкоцит') or a descriptive phrase.
Common Mistakes
- Incorrectly using 'white blood cell' as a plural without adding 's' (e.g., 'His white blood cell are low' instead of 'cells are low').
- Confusing 'white blood cell' with 'red blood cell' when discussing oxygen transport vs. immunity.
Practice
Quiz
What is the primary function of a white blood cell?
FAQ
Frequently Asked Questions
It is a compound noun written as three separate words, though it functions as a single concept. The abbreviation 'WBC' is often used in medical notes.
There is no difference in meaning. 'Leukocyte' (from Greek 'leukos' = white, 'kytos' = cell) is the formal scientific term, while 'white blood cell' is the common English term.
Yes, a high white blood cell count (leukocytosis) can indicate infection, inflammation, leukaemia, or other medical conditions.
They are colourless when viewed individually under a microscope. They appear white in a centrifuged blood sample because they form a thin, pale layer (the 'buffy coat') between the red blood cells and plasma.