tyrothricin
Very RareTechnical / Historical
Definition
Meaning
An antibiotic mixture produced by the bacterium Bacillus brevis, effective against certain Gram-positive bacteria.
A crystalline polypeptide antibiotic complex, historically significant as one of the first antibiotics discovered, now mainly of academic or historical interest in medicine and microbiology.
Linguistics
Semantic Notes
Primarily used in historical contexts of antibiotic discovery or in very specialized microbiological literature. It is not a current therapeutic agent.
Dialectal Variation
British vs American Usage
Differences
No significant differences in usage; the term is identically technical and rare in both varieties.
Connotations
Carries connotations of early 20th-century scientific discovery and obsolescence in mainstream medicine.
Frequency
Extremely low frequency in both regions, confined to historical or highly specialized scientific texts.
Vocabulary
Collocations
Grammar
Valency Patterns
Tyrothricin is produced by X.X exhibits activity against Y.The discovery of tyrothricin preceded that of penicillin.Vocabulary
Synonyms
Neutral
Weak
Vocabulary
Antonyms
Usage
Context Usage
Business
Not used.
Academic
Used in historical reviews of microbiology or antibiotic discovery.
Everyday
Virtually never used.
Technical
Used in specialized microbiology or history of medicine texts to refer to this specific early antibiotic mixture.
Examples
By Part of Speech
adjective
British English
- The tyrothricin solution was prepared.
- Tyrothricin research in the 1940s was groundbreaking.
American English
- The tyrothricin preparation was analyzed.
- Tyrothricin studies paved the way for later discoveries.
Examples
By CEFR Level
- Tyrothricin is an antibiotic discovered in the 1930s.
- This old medicine contains tyrothricin.
- Although largely obsolete, tyrothricin retains historical significance as one of the first antibiotics to be isolated and studied in detail.
- The tyrothricin complex exhibited potent activity against several Gram-positive pathogens in early laboratory assays.
Learning
Memory Aids
Mnemonic
Think 'TYRE' (like a wheel from the old days) + 'THROW' + '-icin' (like medicine). An old (historical) thing thrown into the fight against bacteria.
Conceptual Metaphor
HISTORICAL ARTIFACT (a relic from the early days of a field)
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not confuse with 'тиротрицин' (a direct transliteration, but the term is not common in Russian either). The concept is specific and historical, so a descriptive translation like 'антибиотический комплекс тиротрицин' may be needed.
Common Mistakes
- Misspelling as 'tyrothrycin', 'tirothricin'.
- Assuming it is a modern, commonly used drug.
Practice
Quiz
Tyrothricin is best described as:
FAQ
Frequently Asked Questions
No, it is historically significant but not used in modern clinical practice, having been superseded by more effective and safer antibiotics.
It is a polypeptide antibiotic complex produced by the bacterium Bacillus brevis.
It was one of the first antibiotics to be discovered and studied, contributing to the early understanding of antibiotic therapy.
No, it is not a current pharmaceutical product and would not be available in standard pharmacies.