precursor
C1Formal; Academic; Technical
Definition
Meaning
A person, thing, or event that comes before another of the same kind and signals its approach or acts as a model for it.
A substance from which another substance is formed.
Linguistics
Semantic Notes
Emphasises chronological priority and often a direct causal or developmental link. More formal than 'forerunner' or 'harbinger'. In chemistry/biochemistry, it denotes a compound that participates in a chemical reaction to produce another.
Dialectal Variation
British vs American Usage
Differences
No significant spelling or meaning differences. Usage is equally formal and frequent in both varieties.
Connotations
Technical/scientific connotation is strong in both varieties. In general discourse, it implies a more direct lineage than a mere 'antecedent'.
Frequency
Slightly more common in academic and scientific writing than in everyday conversation in both UK and US English.
Vocabulary
Collocations
Grammar
Valency Patterns
[be] a precursor of/to sth[serve/act] as a precursor to sthVocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “A precursor of things to come”
Usage
Context Usage
Business
The market crash was a precursor to the global recession.
Academic
The philosopher's early writings are considered a direct precursor to postmodern thought.
Everyday
Those dark clouds are a precursor to heavy rain.
Technical
Cholesterol is a precursor to several essential hormones.
Examples
By Part of Speech
verb
British English
- N/A
American English
- N/A
adverb
British English
- N/A
American English
- N/A
adjective
British English
- The precursor molecule was identified.
American English
- Precursor events were carefully analyzed.
Examples
By CEFR Level
- The first robin is often seen as a precursor of spring.
- The political protests were a clear precursor to the revolution that followed.
- The treaty is viewed by historians not as an endpoint, but as a precursor to a more protracted and complex conflict. In the lab, they isolated the enzyme's precursor compound.
Learning
Memory Aids
Mnemonic
Think: PRE-CURSOR. A CURSOR moves ahead on the screen. A PRE-cursor comes BEFORE and signals what's ahead.
Conceptual Metaphor
A SIGNPOST on the road to something else. A SEED from which something grows.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid directly translating as 'предшественник' in all contexts, as it is more formal and specific. For a person, 'предшественник' works; for an event or substance, 'предтеча' or 'предвестник' might be closer, but 'прекурсор' is used in chemistry.
Common Mistakes
- Confusing with 'predecessor' (usually a person). Using 'precursor for' instead of 'precursor to/of'. Overusing in informal contexts.
Practice
Quiz
In a biochemical context, a 'precursor' is best described as:
FAQ
Frequently Asked Questions
No, it is neutral. It can be used for negative events (e.g., 'a precursor to war') or positive ones (e.g., 'a precursor to peace').
A 'precursor' comes before and often signals or enables something, but may not be the direct 'cause'. A cause directly produces an effect. A precursor is more about sequence and indication.
Yes, though it's formal. 'She was a precursor to the feminist writers of the 20th century.' In many cases, 'forerunner' or 'predecessor' might be more natural for people.
Both are correct and often interchangeable. 'Precursor to' is slightly more common, especially when indicating a sequence. 'Precursor of' can imply a stronger model or prototype relationship.
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