mutagen
C1-C2scientific, academic, technical
Definition
Meaning
A chemical or physical agent that causes genetic mutation.
Any substance that can alter the genetic material (DNA) of an organism, potentially leading to cancer or heritable disorders; also used in research to study genetics.
Linguistics
Semantic Notes
Primarily a noun. The term is neutral in scientific discourse but carries a negative connotation in public health/environmental contexts (as something harmful).
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or usage. Spelling and pronunciation are consistent.
Connotations
Identical scientific meaning. In public discourse, 'mutagen' and 'carcinogen' are often conflated in both regions, though they are distinct.
Frequency
Equally low-frequency in general English but standard in genetics, toxicology, and related fields in both regions.
Vocabulary
Collocations
Grammar
Valency Patterns
N of N (mutagen of DNA)N + that-clause (a mutagen that causes...)Adj-N (potent mutagen)Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Usage
Context Usage
Business
Rare. Possibly in pharmaceutical/chemical industry risk assessments: 'The new compound was flagged as a potential mutagen.'
Academic
Standard in genetics, molecular biology, toxicology papers: 'The Ames test is used to screen for bacterial mutagens.'
Everyday
Very rare. Might appear in news about pollution or food safety: 'The pesticide was found to be a mutagen.'
Technical
Core term in genetic toxicology, regulatory science: 'The ICH guidelines require testing for mutagenicity.'
Examples
By Part of Speech
adjective
British English
- The mutagenic properties were assessed.
- A mutagenic effect was observed.
American English
- They ran a mutagenicity assay.
- The substance was deemed mutagenic.
Examples
By CEFR Level
- Some chemicals are mutagens and can damage your cells.
- Researchers tested the compound to see if it acted as a mutagen in bacterial cultures.
Learning
Memory Aids
Mnemonic
Think: 'MUTAtion GENerator' = MUTAGEN.
Conceptual Metaphor
A MUTAGEN IS A WRECKING BALL FOR DNA (alters the blueprint).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not confuse with 'мутагенный' (mutagenic, the adjective). Ensure correct noun/adjective form.
- Not to be translated as 'мутант' (mutant), which is the result, not the cause.
Common Mistakes
- Using 'mutagen' interchangeably with 'carcinogen' (all carcinogens are mutagens, but not vice versa).
- Pronouncing it /ˈmjuːteɪdʒən/ (incorrect stress and vowel).
Practice
Quiz
Which of the following is the most accurate description of a 'mutagen'?
FAQ
Frequently Asked Questions
No. A mutagen specifically causes changes in DNA. A carcinogen causes cancer. Many carcinogens are mutagens, but some carcinogens work without directly damaging DNA (e.g., promoting cell growth).
Yes, in controlled settings. Some mutagens are used in laboratory research to create genetic variants for study, or in plant breeding to develop new crop strains.
No, it is a specialist term. It is common in scientific fields like genetics, biology, and toxicology, but rare in everyday conversation.
A mutagen alters DNA in any cell. A teratogen causes birth defects by disrupting fetal development, which may or may not involve DNA mutation.