spark gap: meaning, definition, pronunciation and examples
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Quick answer
What does “spark gap” mean?
A gap between two electrical terminals across which a spark can jump, typically to ignite a fuel mixture or to act as a circuit component.
Audio
Pronunciation
Definition
Meaning and Definition
A gap between two electrical terminals across which a spark can jump, typically to ignite a fuel mixture or to act as a circuit component.
A physical separation designed to allow a controlled electrical discharge; metaphorically, any space or difference that enables a sudden transfer of energy, idea, or action.
Dialectal Variation
British vs American Usage
Differences
No significant difference in meaning or usage. Spelling and technical application are identical.
Connotations
Neutral technical term in both variants.
Frequency
Equally low-frequency in both British and American technical English.
Grammar
How to Use “spark gap” in a Sentence
The [noun] has a spark gap of [measurement].A spark gap [verb] between the [noun] and the [noun].Adjust/Set/Widen the spark gap.Vocabulary
Collocations
Examples
Examples of “spark gap” in a Sentence
adjective
British English
- The spark-gap measurement was critical.
- It was a spark-gap ignition system.
American English
- The spark-gap measurement was critical.
- It was a spark-gap ignition system.
Usage
Meaning in Context
Business
Virtually never used.
Academic
Used in physics and electrical engineering papers describing early radio technology, ignition systems, or discharge experiments.
Everyday
Extremely rare. Might be encountered by someone repairing an older car or a hobbyist.
Technical
The primary domain. Refers to a specific component in internal combustion engines, early radio transmitters, surge protectors, and some scientific apparatus.
Vocabulary
Synonyms of “spark gap”
Vocabulary
Antonyms of “spark gap”
Watch out
Common Mistakes When Using “spark gap”
- Using 'spark gap' as a verb (e.g., 'It spark gapped'). It is a noun compound.
- Confusing it with 'gap spark'. Order is fixed.
- Using in general language where 'spark' alone would suffice.
FAQ
Frequently Asked Questions
It is a compound noun, typically written as two separate words ('spark gap'). It may be hyphenated when used as a modifier (e.g., spark-gap transmitter).
Yes, but it is a very specialised metaphor, typically found in analytical or journalistic writing to describe a small, critical separation that allows a sudden and significant event to occur.
A spark plug is the entire device that screws into an engine cylinder. The spark gap is the specific, adjustable space between the electrodes at the tip of the spark plug where the spark actually jumps.
No. It is a low-frequency technical term. Most learners will only need it if they are studying or working in specific engineering fields or have a related hobby.
A gap between two electrical terminals across which a spark can jump, typically to ignite a fuel mixture or to act as a circuit component.
Spark gap is usually technical in register.
Spark gap: in British English it is pronounced /ˈspɑːk ɡæp/, and in American English it is pronounced /ˈspɑːrk ɡæp/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “Mind the gap (playful/punny extension, not a standard idiom for 'spark gap')”
Learning
Memory Aids
Mnemonic
Imagine a SPARK jumping over a GAP between two metal points in a car's spark plug.
Conceptual Metaphor
THE GAP IS A CATALYST / TRIGGER POINT (A small separation that enables a powerful, initiating event).
Practice
Quiz
In which field is the term 'spark gap' MOST commonly used?