superconductivity
/ˌsuː.pə.kɒn.dʌkˈtɪv.ɪ.ti/ IELTSAcademic
noun
Superconductivity is a state in which some materials carry electricity with no resistance when they are very cold. It can also refer to the study or use of this state in science and technology.
- Scientists observed superconductivity at very low temperatures.
- This material shows superconductivity below 20 kelvin.
- Superconductivity can help make powerful magnets.
Adinary Nuance
Superconductivity is not just very good conductivity. It means electrical resistance drops to zero under special conditions, usually extreme cold. Use conductivity for ordinary carrying of electricity, and superconductivity for the special zero-resistance state. It is more precise and scientific than words like efficiency or high conductivity.
In other languages
- Vietnamese
- siêu dẫn
- Spanish
- superconductividad
- Chinese
- 超导性
- Japanese
- 超伝導
- Korean
- 초전도성
Etymology
The word comes from super- plus conductivity. It appeared in modern scientific English in the early 20th century, after the phenomenon was discovered.
Common phrases
superconductivity at low temperaturesa superconductivity experimentthe theory of superconductivityapplications of superconductivity
Synonyms
Related words
Frequently asked questions
- Is superconductivity the same as conductivity?
- No. Conductivity means electricity passes easily. Superconductivity means zero resistance under special conditions.
- Is superconductivity used in science writing?
- Yes. It is a common academic and scientific word, especially in physics and engineering.
- What is a simple example of superconductivity?
- A material cooled very strongly can carry current without losing energy as heat.
- Can I use superconductivity in everyday English?
- Yes, but only when talking about physics, materials, or technology.