antimetabolite: meaning, definition, pronunciation and examples
C2 (Very Low Frequency)Specialized/Technical
Quick answer
What does “antimetabolite” mean?
A substance that disrupts normal cellular metabolism by interfering with the function of essential metabolites.
Audio
Pronunciation
Definition
Meaning and Definition
A substance that disrupts normal cellular metabolism by interfering with the function of essential metabolites.
A type of chemotherapeutic drug or other agent that prevents cancer cells or pathogens from growing and dividing by mimicking the structure of necessary metabolic building blocks, thereby inhibiting key biochemical reactions.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or usage. Spelling is consistent. Pronunciation may follow regional patterns for stress and vowels.
Connotations
Neutral technical term in both varieties.
Frequency
Equally rare and specialized in both British and American English, confined to professional medical/scientific discourse.
Grammar
How to Use “antimetabolite” in a Sentence
The [drug/agent] [is/acts as] an antimetabolite.[Patient] was treated with [an/the] antimetabolite.[Agent] functions by [being/serving as] an antimetabolite for [target metabolite].Vocabulary
Collocations
Examples
Examples of “antimetabolite” in a Sentence
adjective
British English
- The antimetabolite effect was measured in vitro.
- It has an antimetabolite mechanism of action.
American English
- Researchers studied the antimetabolite properties of the compound.
- This is an antimetabolite drug.
Usage
Meaning in Context
Business
Not used.
Academic
Used in biochemistry, pharmacology, and oncology research papers to describe a class of drugs or experimental compounds.
Everyday
Virtually never used. A patient might hear it from an oncologist but is unlikely to use it themselves.
Technical
Core term in medical oncology treatment plans, pharmaceutical development, and microbiological research (e.g., antibiotic action).
Vocabulary
Synonyms of “antimetabolite”
Neutral
Weak
Vocabulary
Antonyms of “antimetabolite”
Watch out
Common Mistakes When Using “antimetabolite”
- Mispronouncing it as 'anti-me-tab-o-light'.
- Using it as a general term for any poison or inhibitor.
- Confusing it with 'antibiotic' or 'antiviral' (these describe targets, not mechanisms).
FAQ
Frequently Asked Questions
Not exactly. Chemotherapy is a broad category of cancer treatment. An antimetabolite is a specific type of chemotherapeutic drug that works by mimicking essential metabolites.
Yes, some antibiotics work via an antimetabolite mechanism. For example, sulfonamide antibiotics mimic PABA (para-aminobenzoic acid), a substrate needed by bacteria to synthesize folate.
An antimetabolite has a specific, mimic-based mechanism of action against a defined metabolic pathway, often used therapeutically at controlled doses. A 'toxin' is a broader, non-technical term for any poisonous substance and does not imply this specific mechanism.
Yes, this is a major source of side effects. While they target rapidly dividing cells (like cancer), normal cells that also divide quickly (e.g., in bone marrow, digestive tract, hair follicles) can be affected, leading to issues like low blood counts, mouth sores, and hair loss.
A substance that disrupts normal cellular metabolism by interfering with the function of essential metabolites.
Antimetabolite is usually specialized/technical in register.
Antimetabolite: in British English it is pronounced /ˌæn.ti.məˈtæb.ə.laɪt/, and in American English it is pronounced /ˌæn.taɪ.məˈtæb.ə.laɪt/ or /ˌæn.t̬i-/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think 'ANTI-METABOLITE' - it's **against** the normal **metabolite** (a substance needed for metabolism). It's a look-alike that blocks the real thing.
Conceptual Metaphor
A COUNTERFEIT KEY that fits into a lock (enzyme) but doesn't turn, blocking the real key (metabolite).
Practice
Quiz
In which field is the term 'antimetabolite' most precisely and commonly used?