blood group: meaning, definition, pronunciation and examples
B2/C1Semi-technical to technical. Common in medical, healthcare, and everyday health contexts.
Quick answer
What does “blood group” mean?
A classification of human blood based on the presence or absence of inherited antigenic substances (e.
Audio
Pronunciation
Definition
Meaning and Definition
A classification of human blood based on the presence or absence of inherited antigenic substances (e.g., A, B, and Rh) on the surface of red blood cells.
In extended or figurative use, it can refer to innate, unchangeable characteristics or categories of people, though this is uncommon.
Dialectal Variation
British vs American Usage
Differences
'Blood group' is the primary term in British English. 'Blood type' is also used and understood, but 'group' is more standard in official/medical contexts. In American English, 'blood type' is the dominant everyday term, though 'blood group' is also perfectly correct and used in medical literature.
Connotations
No significant difference in connotation. Both are neutral and clinical.
Frequency
In UK corpus data, 'blood group' is more frequent. In US corpus data, 'blood type' is more frequent.
Grammar
How to Use “blood group” in a Sentence
have + [possessive] + blood group (I have blood group A positive)be + blood group + [identifier] (She is blood group O negative)belong to + blood group + [identifier] (He belongs to blood group AB)Vocabulary
Collocations
Examples
Examples of “blood group” in a Sentence
adjective
British English
- blood-group compatibility
- blood-group testing
American English
- blood-type compatibility
- blood-type testing
Usage
Meaning in Context
Business
Rare, except in pharmaceutical, biomedical, or insurance contexts (e.g., 'The test kit identifies major blood groups.').
Academic
Common in biology, medicine, and genetics papers (e.g., 'The distribution of ABO blood groups varies globally.').
Everyday
Common when discussing health, donating blood, or medical history (e.g., 'Do you know your blood group for emergencies?').
Technical
The standard term in hematology, transfusion medicine, and immunology (e.g., 'The patient's serum was tested against a panel of red cells representing all major blood groups.').
Vocabulary
Synonyms of “blood group”
Neutral
Weak
Watch out
Common Mistakes When Using “blood group”
- Using uncountable form (e.g., 'I need to know my blood group' is correct; '...my blood groups' is wrong for one person).
- Confusing 'blood group' (the category) with 'blood sample' (the physical specimen).
FAQ
Frequently Asked Questions
There is no scientific difference; they are synonyms. 'Blood group' is preferred in UK English and formal medical contexts globally, while 'blood type' is more common in everyday US English.
There are four main groups in the ABO system: A, B, AB, and O. Each can be further classified as Rh-positive or Rh-negative, making eight primary types.
It is crucial for safe blood transfusions and organ transplants. Receiving incompatible blood can cause a severe, potentially fatal immune reaction.
Typically, no. Your ABO and Rh blood groups are genetically determined and lifelong. Extremely rare exceptions can occur after certain medical procedures like a bone marrow transplant from a donor with a different blood group.
A classification of human blood based on the presence or absence of inherited antigenic substances (e.
Blood group is usually semi-technical to technical. common in medical, healthcare, and everyday health contexts. in register.
Blood group: in British English it is pronounced /ˈblʌd ɡruːp/, and in American English it is pronounced /ˈblʌd ɡruːp/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think of a 'group' of friends. Your blood has antigens that make it part of a specific 'group' (A, B, O, AB) that must match for safe transfusion.
Conceptual Metaphor
CLASSIFICATION IS CATEGORIZATION (Blood is categorised into distinct, inherited groups like books in a library).
Practice
Quiz
Which term is most commonly used interchangeably with 'blood group' in everyday American English?