hemolysin: meaning, definition, pronunciation and examples
C2Technical/Scientific
Quick answer
What does “hemolysin” mean?
A substance, especially a toxin or antibody, that destroys red blood cells.
Audio
Pronunciation
Definition
Meaning and Definition
A substance, especially a toxin or antibody, that destroys red blood cells.
A type of bacterial virulence factor or immune system component that lyses erythrocytes by damaging their membranes.
Dialectal Variation
British vs American Usage
Differences
Spelling: 'haemolysin' (UK) vs. 'hemolysin' (US).
Connotations
Identical scientific meaning; no regional connotative differences.
Frequency
Far more frequent in medical and microbiological literature than in general usage in both regions.
Grammar
How to Use “hemolysin” in a Sentence
[Name of bacterium] produces [a] hemolysin.The hemolysin lyses [target cells].Vocabulary
Collocations
Examples
Examples of “hemolysin” in a Sentence
verb
British English
- The pathogen haemolysed the blood cells.
American English
- The toxin hemolyzed the red blood cells.
adjective
British English
- The strain exhibited haemolytic activity on blood agar.
American English
- Researchers identified a new hemolytic factor.
Usage
Meaning in Context
Academic
Central to research in medical microbiology, immunology, and toxin biology.
Everyday
Virtually never used.
Technical
Precisely used in lab reports, clinical microbiology, and pharmacology.
Vocabulary
Synonyms of “hemolysin”
Neutral
Weak
Vocabulary
Antonyms of “hemolysin”
Watch out
Common Mistakes When Using “hemolysin”
- Confusing 'hemolysin' (noun, the agent) with 'hemolysis' (noun, the process) or 'hemolytic' (adjective).
FAQ
Frequently Asked Questions
Hemolysin is the substance (e.g., toxin) that causes the destruction. Hemolysis is the process or event of red blood cell destruction.
In a host organism, yes, it is a virulence factor. In a laboratory context, it is a neutral tool for study.
Typically no. Hemolysins are most commonly associated with bacterial toxins (e.g., streptolysin from Streptococcus) or as components of the immune system (e.g., complement membrane attack complex).
Primarily via culture on blood agar plates, where hemolytic activity appears as a zone of clearing (hemolysis) around bacterial colonies.
A substance, especially a toxin or antibody, that destroys red blood cells.
Hemolysin is usually technical/scientific in register.
Hemolysin: in British English it is pronounced /ˌhiːmə(ʊ)ˈlaɪsɪn/, and in American English it is pronounced /ˌhiːmoʊˈlaɪsɪn/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think: 'HEMO' (blood) + 'LYS' (to split/break) + 'IN' (a substance) = a substance that breaks blood cells.
Conceptual Metaphor
A key that unlocks and destroys a blood cell (the lock).
Practice
Quiz
What is the primary function of a hemolysin?