mercury-vapour lamp: meaning, definition, pronunciation and examples
C2 / Rare / TechnicalTechnical
Quick answer
What does “mercury-vapour lamp” mean?
A type of electric lamp that produces light by passing an electric current through mercury vapour, emitting a bright bluish-white light.
Audio
Pronunciation
Definition
Meaning and Definition
A type of electric lamp that produces light by passing an electric current through mercury vapour, emitting a bright bluish-white light.
Historically important in street lighting and industrial applications due to high efficiency and long lifespan, though largely phased out due to environmental concerns (mercury content) and the advent of LED technology. The light characteristically lacks red wavelengths.
Dialectal Variation
British vs American Usage
Differences
Primarily spelling: UK 'mercury-vapour lamp', US 'mercury-vapor lamp'. The hyphen is often retained in technical writing.
Connotations
Identical technical connotations. Evokes mid-20th century infrastructure, factories, or old sports stadium lighting.
Frequency
Very low in general language. Use is almost exclusively historical or in technical maintenance contexts. More common in UK English due to longer retention of this lighting in some public systems.
Grammar
How to Use “mercury-vapour lamp” in a Sentence
The [location] was illuminated by mercury-vapour lamps.They replaced the [old lighting] with mercury-vapour lamps.The [subject] emits light from a mercury-vapour lamp.Vocabulary
Collocations
Examples
Examples of “mercury-vapour lamp” in a Sentence
verb
British English
- The council decided to mercury-vapour lamp the entire carpark.
- They are still mercury-vapour-lamping some minor roads.
American English
- The city mercury-vapor-lamped the industrial park in the 1970s.
adverb
British English
- The yard was lit mercury-vapour-lamp bright.
American English
- The lot shone mercury-vapor-lamp blue.
adjective
British English
- The mercury-vapour-lamp glow was unmistakable.
- He was a mercury-vapour-lamp specialist.
American English
- The mercury-vapor-lamp era is over.
- We need a mercury-vapor-lamp ballast.
Usage
Meaning in Context
Business
Potential discussion in facility management regarding replacement costs of outdated lighting.
Academic
History of technology, environmental studies (mercury remediation), physics of gas-discharge lighting.
Everyday
Extremely rare. Might be used by an older person recalling the colour of old streetlights.
Technical
Precise reference in electrical engineering, lighting design, and hazardous waste management manuals.
Vocabulary
Synonyms of “mercury-vapour lamp”
Strong
Neutral
Weak
Vocabulary
Antonyms of “mercury-vapour lamp”
Watch out
Common Mistakes When Using “mercury-vapour lamp”
- Misspelling 'vapour'/'vapor'.
- Confusing with 'fluorescent lamp' (which uses mercury vapour but has a phosphor coating).
- Using in non-technical contexts where 'streetlight' or 'floodlight' would suffice.
FAQ
Frequently Asked Questions
No. Both contain mercury vapour, but fluorescent lamps have a phosphor coating on the inside of the tube that converts the ultraviolet light into visible light, resulting in a different colour and diffused glow.
No. Breaking one releases mercury vapour, which is toxic. Specialised cleanup procedures and hazardous waste disposal are required.
In older street lighting, factory high-bay lighting, car parks, and sports stadium lighting from the mid-20th century until the 2000s.
A harsh, bright, bluish-white or greenish-white light that makes colours look unnatural, especially reds, which appear dull or brownish.
A type of electric lamp that produces light by passing an electric current through mercury vapour, emitting a bright bluish-white light.
Mercury-vapour lamp is usually technical in register.
Mercury-vapour lamp: in British English it is pronounced /ˈmɜː.kjə.ri ˌveɪ.pə ˌlæmp/, and in American English it is pronounced /ˈmɝː.kjə.ri ˌveɪ.pɚ ˌlæmp/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “None. The term is purely technical.”
Learning
Memory Aids
Mnemonic
Imagine a THERMOMETER (mercury) turning into a cloud (vapour) inside a LIGHT BULB.
Conceptual Metaphor
Not typically used metaphorically. Literal object.
Practice
Quiz
Why have mercury-vapour lamps been largely phased out?